Not having to compromise in order to accommodate others. Enjoyed many years of living life on my terms. Sure I had to go to work, but in my free time I could do whatever I wanted, when it suited me and be with those whom I choose to enjoy their company for as long as I felt like it.
A few years later after a move abroad: Stoßlüften!
So you have to really reconsider how much you'll be able to eat/drink before it expires, and often buy way smaller portions than you would if shopping for others.
Once forced to move out in my twenties, I found it wasnt that expensive, I could eat well, do things and the anxiety I had with not being able to pay bills was unfounded.
I think businesses could help youngsters gain their independence by just being more upfront over the costs they are likely to see, if they move into a property, etc etc.
With hindsight I should have moved out earlier because the parents did get alot of unpaid help from me by me still living at home, which is part of that one way older generational exploitation thats normalised in society.
Not really a big realization, but the biggest I had. Luckily enough it was the first day and the RA just finished having orientation in the lobby.