An argument is about proving if your opinion is right. An argument will always be informal, no matter what. It's nothing more than two sides (maybe more) trying to prove who's correct. You're not getting that. Age isn't a limiting factor in an argument. That's ageism in its purest form.
Statements like this are what this whole drama are about, you forgetin shmuck. It's this "I'm smarter than you" attitude you can't put away. Maybe you're doing it accidentally, I dunno, but you really type like an starfish dude. I know what an argument is, thanks. I really, really needed 3 sentences to get it.
My point in bringing up your age is that you lack a lot of the perspective required to have a well thought out political opinion, so when you tell
other people they haven't really figured their own ideas out, you look like total idiot. If you're 15 you're what, one year into high school? You almost certainly haven't experienced enough in your life or had enough exposure to either side of the political spectrum to have formed a proper opinion on it.