This monumental unfairness used to bother me so much as a kid, and the adults would tell me, "Life isn't fair. You'll understand when you're a grown up," and I would get punished for telling them that saying "life isn't fair" doesn't excuse anyone from not doing their best to try to make it fair.
Now I'm in my 40s, and it bothers me even more, and I understand it even less. 🤷
Edit: I also used to think the voting age should be lowered. I still do, but I used to, too.