I am wondering if there are any other stepmothers out there that are completely distancing themselves and their kids from their stepkids during this time? 
I have been staying at our weekend cabin for the last 3/4 weeks. My husband came up to see us for one weekend without his 2 kids that he has 50% custody over. I made sure to ask him to check his temp for days leading up to the visit as it scares me that he will get the virus and give it to us. For years I have tried to teach stepkids basic hygiene. Their only responsiblilities in our home is to clean up after themselves after meals and to wash their hands and change after school and sports. They have blantantly ignored this for years, they pretend to forget, they have brought l so many sicknesses into our home, with newborns and beyond that. Just one example, their mother (who "doesn't understand why I ask them to wash their hands") has dropped them off with pinkeye without letting us know when we had a 2 week old in the home. There have been too many occasions like this to name. The kids are pre-teens. Their mother still sees her brother, sister and their kids as they all live in the same community. 
anyways, I've been isolating with our two (10 months old and 4 years old) and he's gone back and forth between understanding that I fear this virus and I am doing what is being asked of everyone during this pandemic to asking me if it's ok if the kids come up to the cabin "because they want to". 
this situation (having stepkids) is extremely hard for 'me right now. I am afraid to be around them with my kids as they can be carriers and I fear that it is just a matter of time until one of them gets it and I don't want them to give it to one of my two or myself and to not be able to care for my babies or even worse-one of us die. My mom is a nurse and has had too many fellow nurses pass away from this virus and too many patients. 
my husband hasn't had anyone directly effected by this and I suspect he is in denial of the severity. 
basically, is anyone else in a similar situation? Am I wrong here? Thoughts? I feel that I'm doing what's best for myself and my two kids..along with what is being asked of us for the health of everyone (staying home/stopping the spread/helping to flatten the curve).