Dan gave out candy to all regardless of age. It helps too that they actually had costumes and weren't out being rude to kids.

I dressed up when I was a freshman in college. My friends and I went to a local subdivision near the university. All was well at first. We'd let younger kids go ahead of us, we were polite and got into the spirit of things, most houses loved our costumes. Then one elderly couple at a house started cursing and yelling at us threatening to call the cops!

I wasn't aware that Halloween had an age limit.