This info will be stated from the ticket provider before purchasing. That being said, I have seen tons of young teenagers at rock concerts in the ATL (shorty what).
Most concerts don't have age limitations. Usually restrictions are for comedy shows and other events.
Check to see if the show is all ages. Primus usually does all ages shows. They are excellent, btw!
Usually all ages, but call first. Each show is different. I've never seen a 18+ show, most are all ages.
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