As with anything else I do that my family doesn't approve of, they know better than to challenge me. I will respect their wishes and not vape in their home but, other than that, they simply got told "Yep, my life, my way, just like your religion, don't bother, I'm not changing for you."
All but my sister already got banned from my house over religion and preaching at me in my home - she isn't willing to try it over vaping and, if she did, she too would be barred and, I would lock the door if she tried to visit as I do to my parents.
No, I don't get on well with my family, according to them, I left their religion and so, I'm as good as a demon myself until I repent and get baptized again. That is never going to happen so, nothing I do is ever going to be good to them. (No my partner isn't good, raising my own meat animals isn't good, working from home isn't good, and vaping isn't good either. Oh well, let them live their lives, I like mine how it is.)
Wow I am sorry to hear this, Seems like your family aren't open minded. This is what religion will do to some people.