1. Not all parents are like that
2. As a new teen I can confirm that things people say to me feels a lot more persona than it used too, which is PROBABLY (emphasis on probably) why you feel as though your parents are putting you through that (emphasis on probably)
Why do parents treat their kids like property? Like sure, I get "hey, TV time is over" or "no more soda, you had enough" but when it gets to the point where they put their child through extreme mental harm for just mildly inconveniencing them, that's where the line was far beyond crossed. Also with the fact teenagers aren't legally allowed to run away, I mean, younger kids run away for stupid reasons, but like, if a teen, especially an older one is running away, then it's clearly for a good reason and you should interview that damn kid; Just a really short vent.