As long as you have a health certificate.
But the premise is that people need to recruit people.
Also, they may ask you to come to work on weekends (because they are busiest on weekends), so don't ask them if you don't promise.
Finally, let me give you a suggestion. If you go, don't say I only do it in summer vacation. In this case, people generally hope that since they want you, they will do it for a long time, but no one will want you when they come to play in the summer vacation, just like KFC and McDonald's.
KFC and McDonald's have even lower requirements. I really don't care if you are 165 or 185. It's not like I'm going to the draft, but I'm too busy to die. After working for a few months, I don't want to work anymore.