I've been to many [big, small] well-known, legit shows in the US as a kid who was not yet an adult. I did not have an ID, and none was required to get in. All

I've been to many [big, small] well-known, legit shows in the US as a kid who was not yet an adult. I did not have an ID, and none was required to get in. All-ages shows are definitely things that exist.