How old do you have to be buy a concert ticket?

There is no universal age requirement to purchase a concert ticket, as it can vary depending on the venue, the artist, and local laws and regulations.

In general, most concert venues require individuals to be at least 18 years of age to purchase a ticket without an accompanying adult. However, some venues may allow individuals under the age of 18 to attend concerts if they are accompanied by a parent or legal guardian.

For specific age restrictions, it is best to check with the venue or event organizer directly.