I moved into an apartment with my girlfriend (and her roommate) after being together only a year, and we’re married now. We weren’t much older than you are now (22 and 21). The concerning part is the rest of the family.

You’ve answered a lot of questions, so don’t feel the need to respond to these, but you should know the answers for yourself.

Would you share a bed? Will you be able to hear her parents getting frisky? Because then they will be able to hear you. What if you have to take an epic shit, but her mom has just called everyone down to dinner? What if you go to take a shower and her father has clogged the drain with hair?

What is your alternative plan if you don’t move in with them?

Sharing a roof means intimacy with everyone in the building. There’s very little privacy, and escape is complicated. If you see her as a forever partner, and don’t mind making yourself vulnerable to her family, then actually I probably still wouldn’t do it even under those circumstances.