From my experience, I got in at a young age.They hesitated because my age/looks and was told that being very young is bad because of the following:
1.) young customers are more immature.
2.) young customers are “cheap”
3.) young customers are likely to cause drama.
Just be honest but if you don’t get in I wouldnt take it personal.its a business I guess and safety comes first.
By the way when I started years ago,I was offered discounts because of my age , maturity , and generosity.(Not in NY)
Best of luck