https://www.mercurynews.com/2022/07/22/california-amusement-park-now-requires-chaperone-for-all-visitors-under-18/

Starting Friday, Knott’s Berry Farm won’t allow visitors under 18 unless they’re accompanied by a chaperone.

The policy at the Buena Park theme park starts July 22 and will be in effect on Fridays and Saturdays until further notice, park officials said.