long distance relationships

my girlfriend and I live in cities 3 hours apart. Is it crazy to ask her to move to my city?? she’s from my hometown but i have no desire to move back there, i have a lot of negative connotation with it and it’s just feels like a step back in my adulting.

for reference we’ve been together for 6 months and she wouldn’t move here til june-october next year if she’ll agree to it. she’s pretty opposed to it cause she still lives with her parents (we are only 21) and doesn’t feel ready to move out. i get that, but idk how to go about it.