For those of you that don't have a relationship with their parent, how can I manage no relationship and making sure she is safe?

So, for the second time in 6 years my mother has decided she does not want me in her life. However, this time I'm okay with it. I'm much happier not dealing with her each week. I did not come to the lightly, it's taken 8 years of therapy to get to this point. I was devastated the first time she made that choice. I will never be the person she wants me to be, I can't. I've seen her for years cut people out of her life and then draw them back in again. I'm not doing that. I knew at some point it would be my turn. This all came to a head during the pandemic and election cycle. She does not understand how I don't want to discuss guns, elections, or religion with her. She can't accept that we simple don't agree. I would rather not fight, she thrives in drama. She told me not to contact her again. I will respect her wishes. Yesterday (Mother's day) was a bit rough but I'll get by. But my real questions is I do worry about her aging and living circumstances. I see my husband's mother getting older and having a harder time getting around, every time I see that I think about mom. How can I manage no relationship and making sure she is safe? I'm the only living kid and she has no mate.