Does anyone know what the age limit is to go to a concert by yourself?

As parent up to you.

You know your child, think safety first.

There is no age. I know some parents who say it's ok to do, if you trust them to babysit. Alone. Personally; I consider maturity, the type of concert and that their cell volume/vibrate is on. My kiddo is 15 and I'm still not comfortable with it. There are just too many people. It's easy to drop a ticket and forget where your seats are. Too many hidden corners and halls

I agree if u r the parent it is totally up to you.