Who goes to bed at 7pm?

I am not trying to judge but does too early. I have a friend that goes to bed every night at seven and honestly that’s not like someone our age. We’re like 19 going on 20 and she is 22. What 22 year goes to bed at 7 PM?! where are young were supposed to be going crazy having a great time! I mean crazy in a good way. Supposed to be going out and exploring stuff! Trying to convince her to stay up a little later cause she’s got nothing to do unless it’s work. She needs to learn to live a little. I understand it’s her life and she does whatever she wants that’s her call but still it’s so early if she needs to learn how to live. There’s times we invite her go out and we will take her out somewhere.
All she wants to do is stay home, crochet, read a book and go to bed. She does love shopping and going to the stores but that’s all she does.
But like we said her life she does what she wants and we have no say in it.