All good points! I should have mentioned (and will edit the OP to include this) that politics is about governance, about deciding how things will be. That could be on a national level, a local level, or even a household level. Did your MC convince mom to push back curfew to 11:00? That's politics. Did your MC make a pact with a best friend? Politics. Does your underage character get their hands on a case of beer? Definitely politics. In different cultures around our world, the punishment for being caught by law enforcement or parents could range from nonexistent to harsh, and which is is tells me something about your character, what motivates them, and their threshold for risk.

Cheers,
Michelle