I'm widowed and own my house, where I live with my two primary age DC. After 5 years on my own (bar one rather odd relationship) I'm in a happy relationship. When discussing the future (in abstract terms) on a recent holiday I told BF I would be very unlikely to consider living in a jointly owned property ever and intended to retain sole ownership of mine, as it is my children's home.
He's sort of ok with that but I think disappointed that there is no chance of us ever making a joint home together. I might in the future be willing to let him move in and he could retain an investment property elsewhere. I would also never marry for similar reasons but he's ok with that.
My friends think I am uncompromising and inflexible. I think I'm sensible. But it's a lot to ask someone to never own the home the live in.
No issues around anyone wanting to take advantage financially, both good jobs etc. I just couldn't imagine how awful it would be splitting up and then potentially having to sell a house etc...