why do you guys not like younger people

Sydney
hey :) (rant alert)
this is only my second post and I've been on this app for about a year and a half. I'm in highschool so yeah I'm a teenager. I come across a lot of comments from some adults being really rude to some other teenagers simply for using this app. I was just wondering... why? because this has been very educational for me actually and it's been a great resource for some things. Also, it tracks my period... that's pretty much the only reason I use this. I'm not trying to be rude but do you adults not think we should be able to track our periods too? there's people like me that don't really post, and don't really involve themselves in things, and just track their period as they please. I understand not wanting 13 year olds and under but again, I'm in highschool, I'm very mature actually and some adults have been very rude about this topic. at this point people like me are considered young adults and not little kids anymore 
so feel free to share ur opinion 🙂