honestly, the vast majority are completely reasonable human beings.
most want to demonstrate kindness and empathy, and have high moral standards, and think deeply, and have all sorts of hopes and dreams for the future. They are perfectly capable of self control and responsibility. They need love and care and boundaries and discipline, and understanding and support.
even the worst pack behaviour seen in school, the kids are completely normal when separated out and spoken to alone.
There is a bit of an echo chamber that gets set up on MN threads when someone describes unacceptable teen behaviour, and loads of posters all start saying thats normal, thats a phase, thats hormones, etc
It is so unnecessary. Teens can be harder than younger ages, but they need more parenting at this stage, not less, and the low expectations of teens that I regularly see on here are just parents abdicating responsibility to parent their child, and provide for their needs.
( some children are very hard to parent and discipline, but this isn't something that is related to being a teen)