Talk to Trevor from Hill 437 and the guys at Finch Field when they have game days. I have brought my brother, who was 14 and turned 15 during this period, to Finch Field once and to the Hill more times than I can count.
Conditions were that a guardian had to be playing in-game and I had to stick close to him for the entirety. As well, I had to provide a note from our mother for good conscious as I am not his parent.
I was a regular at the Hill for a very long time and this relaxed a bit as my brother played more games. He was allowed to go off with other bros to pew pew without my constant supervision.
However, I was a regular, and Trevor might not be so apt to having someone he doesn't know chaperone a teen.
Guardians of Asgaard
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