Lot of people seem to have this approach that in your 20s, you should go and travel, party, have fun, date and do all of these things that you 'can't' do once you've settled.
Then, roughly around the age of 30 you 'should' settle with a partner, get married, live together and have children, and the previous carefree life you once knew is over, you should move out of the city, and so on.
Might sound a little silly but don't get why so many people have this way of thinking. I'm not sure if I want to have children so that changes things, but you can still have a long-term relationship and not have to 'settle down'. Fun doesn't suddenly end after a certain age.