I think it's weird.  I'm 48, so not sure where I fall on the older or younger spectrum, but I never discussed things like that with my own father.  He probably didn't want to know all of that.  He might have picked up pads for me at the store if needed but that would be the extent of it.  I honestly don't remember him doing that, but my parents divorced when I was 12 and I lived with my mom.  I was close to my dad too.

In my household, my husband has no problem talking to me about my period, but doesn't want to hear about our daughter's.  My daughter doesn't ever bring it up in front of my husband either because she would feel weird.  

My SIL, on the other hand, wants to involve my brother in all of that talk about my niece and her cycle.  She even told me that I should want to hear about my daughter's sex life if she had one. But I consider the source on that one.  My SIL is certifiably crazy for reasons that have nothing to do with this topic. 

I would never in a million years have had discussed anything of that nature with my father 

DH only got involved if he needed to pick up supplies for OSD (YSD does not ever ever ever bring it up with either of us. She must bring supplies from BMs because she won't even use the stash I have in the 2nd bathroom she uses) or OSD needed Advil or Premarin for cramps.

Depends on what kind of man he is. 
 

If he's truly trying to help his daughter (and she is unknowledgable for her age and/or doesn't have a woman she trusts to discuss reproductive topics) that's one thing but if tracking her cycles is a thinly veiled attempt to control her/poke his nose where it doesn't belong then that's out of order and bordering on putting her into the position of mini-spouse imo

Most men want to know about cycles of their partners so they can easily figure out when they can have relations, when a missed cycle could be a pregnancy, and when to stay out of the way/avoid being annoying if the lady has PMS 

Theyd only want to know this about their daughters if they're underage and trying to prevent teenage pregnancies or teach them about their own bodies to prepare them for adulthood

Not something you'd typically think an already adult woman and her dad would do. But some people feel like they need to know everything about their offspring. 

I'm 41, never discussed any of that with my dad. It just wasn't really done when I was a young girl/woman.

OSD is very open with XH, hasn't ever overshared in my opinion, but also hasn't shied away from being direct about those topics if it was relevant. YSD is much more reserved and I don't think she's ever even asked him to buy tampons.

DD10 is MUCH more open and direct than either of them, she literally has no embarrassment about talking about anything with either XH or me. That could change with puberty, but at this stage she will casually ask questions about reproduction or sex to whichever one of us she happens to be with when the question occurs to her. I honestly don't hate it, I think there is a lot of value in being comfortable and confident enough to discuss those topics with the opposite gender. 

I'm 59. DH and I were at SD28's house recently and she was "under the weather". IOW, she was having her period, talked about it with me, but didn't want to discuss it with her dad because (her word), "Ew!" So I think it's weird for a 21yo to give that much detail to her dad.

Well.. it's not dinner table conversation.. haha... but I think that it's probably a good thing that his daughter is comfortable talking about BC with her father.. because it shows some maturity that she is caring for her own body in appropriate ways.

My YSD has no "shame" about discussing medical type things.. even surrounding her reproductive health.. with me.. and her dad is aware of it also (she also has some migraine issues along with epilepsy.. so things can be intertwined.. so not totally unrelated)

Someone was needed to pay for $ampons 

Is she texting asking for money when she talks about it? Maybe she thinks that's w way to get him to "shut up and pay" because he will be so uncomfortable he won't ask any further questions.

My SO's daughters, 24 and 27, are like this. One of them called him once for money to go to the ER. She said "I have a UTI Daddy! My vagina burns soooo bad even though i always pee after sex!"

Another one called for money for clothes. "My cup size is up to a DD!! Please!!!" 

It makes me cringe when my DH has them on speaker phone and they talk about this. Hell, we were once in a car eldest SD on speaker talking about her heavy flow full well knowing that not only was I there but hubby's best friend as well. I'm old school came from a family of 4 girls and could never imagine any of us talking about it with my Dad. We were not a family of prudes but some things are just private. Unless, there was an emergency my Dad did'nt need to hear about it.

Again, ew, weird.  When I got to a certain age I naturally gravitated a little more towards my mom.  Periods were discussed with Mom, birth control, Mom.  Dad, as far as I know, didn't know I was on birth control.  It was hinted at after I was married but he probably already assumed I was on birth control after I got married.  Mom felt it was none of his business.  My husband doesn't even want to know that our daughter has periods and probably wouldn't want to know if she was on birth control, which she isn't.  Most men probably don't want to hear about things of that nature about their daughters, sisters, mothers, etc. My son I'm sure doesn't want to be in the room if my daughter and I are talking about it.  He walks off if my mom and I start talking about Perimenopause.  They don't want to know.  Their wives are different but you start talking about their daughters, sisters or mothers, they don't usually want to know.  About anything.  Periods,birth control, menopause, nothing.