Only a few family members know (it's not really something they're into or would care about) but only one that knows thinks it's "a waste of money and a problem."
My mother thinks I only play online (and knows I've gotten some top 3 in a few tournaments, one for $1400) and probably wouldn't approve if she knew I play in my local casino.
Most of my friends know, some of my professors and supervisors know and most are pretty intrigued by it and want to learn more about what it's like.
I live with my SO and she supports me 100% on it. Recently since I'm still a full time grad student and income has been scarce in my other work, I've been trying to put a little more time in live I think she's afraid I'll end up living at the poker room! But it's about finding a balance.
I think too once people see you come back with cold hard cash a few times (whether you sucked out lucky or not) they start to understand real quick. But like all of you I love the game too, the money is just silver lining when it's made.
People who don't get it or think it's "just gambooling and an addiction" don't understand. I've long ago made peace with the fact that I'm taking other people's money and they sometimes take mine. As I get better at the game and start to see a little fruits of my hard work, study, and time at the tables, I'm fine with it if people think it's "not legit."