I was extremely lucky to be able to move to an apartment on my own at 17, and this was before my uni year started so for a couple of months I could do whatever the fuck I wanted. In one of the first few nights I was up at 3AM and for the first time I didn't give a shit about it because my parents weren't here nor was anybody else, so I didn't feel any guilt about it. Plus I lived on the 25th floor of one of the tallest buildings in my city and the view was awesome
@avie @Siph Oh here's a chance for words to be confusing! Ground floor is great because no stairs and I'm old with a knee injury, but yeah people can look straight in to windows, even unintentionally.
One floor up from ground seems enough privacy, though if that's first or second depends on location.
I lived in some split level apartments once, where the bottom floor was partially underground, so the entryway had half-steps leading up and down. One up from the bottom was still enough privacy.