How old is that manager?

Lunch today was on the road, at McDonald's. Hey it was good enough for our former president, it's good enough for me.

Anyway, the sign says they are hiring managers, crew members, openers and closers. For the openers and closers, it said they had to be 18.

But there was no disclaimer on the managers. Can they be 16? I know a 16 year old can work there. A lot of the managers ACT 16 (or even less).

How would you interpret the sign? How old does the manager look at your local Mickey D's?