Man, that's the whole reason why bitcoin hasn't been adopted more widely than it has--people are generally fine with using their debit cards, cash, or phone to pay for things, plus the places where you buy everything generally don't accept bitcoin anyway.  It's a legitimate point. 

My family knows about my interest in bitcoin, but they have no interest in it themselves--probably for the above reason, i.e., they see no reason to go out of their way to buy a form of money that's hard to spend.  They think of it as my little eccentric hobby I guess, and that's totally fine with me.  Hell, I tend to think of crypto more as an investment than a currency anyway. 

On a related note, the few friends I have also feel the same way.  I think I've met about three human beings in the real world who've actually owned any bitcoin.  A lot of them have heard about it, but in my experience most people have never played around with it themselves.