My Dad loves it and (when he has the time) comes out to get involved. Deep sky objects don't do much for him, but he loves the planets and moon. My mum displays detached interest, her fav object is Saturn. They're used to my expensive hobbies, considering I collect random computer junk, build up a system where it sits under the bed when something else has consumed me. Then there's the computer I keep upgrading and recycling old parts from
so astronomy is just one other expensive hobby, but one where it doesn't outdate every four months
One of my friends is obsessed with space (specifically the crab nebula, no idea why) but he doesn't have the patience for the hobby, nobody else really cares what I do so yeah