What are some common seterotypes about age?

-a lot of people think that young people are incapable of making important decisions that may affect their futures due to their lack of experience and views that may be affected by the changes that they're going through (however it's important to realise how hypocritical governments like the British government are about this idea; I was asked by my school what I wanted to do for the rest of my life when I was 15, an age at which in the UK I couldn't even legally drive).

-The same is also thought about older people who run the possibility of being infirm due to their age therefore it's collectively felt that no-one a significant few years over the midlife crisis is capable of making decisions in their best interest and the families must step in.

-another one is that teenagers are all arrogant and angry and just think about sex all the time, there are lots of teenagers that are proudly all about that, but you have to realise that your teenaged years are a segway to adulthood and there are many mature teenagers out there.