Keep Your Hands Inside the Ride

At what age should you let your daughter go to places like amusement parks without you being there?  Don't get me wrong, other parents I trust will be there, just not me.  Keep in mind I understand I can't deflect all the COVID germs,  I can't make the roller coasters any more safe, and I can't even keep her from tripping and scraping her knee.  She would literally be less protected if it were me taking her instead because the other parents are doctors.  That said, I was thinking an appropriate age was roughly 28...apparently, I was overshooting by about 16 years.