That other thread had me depressed, lol.
When I was a kid (and teen) I hated:
*8 hour days of school
*Bedtimes
*Detentions
*Curfews
*Not being able to drive
*Not being able go anywhere I wanted
*Groundings and spankings
*Two words: NO FREEDOM!!!
There's a LOT more, I just can't think of it.