I live in pa, and started as a busboy at 16, then, before I turned 17 I was in the kitchen frying up stuff and working the buffet. so yes, if you're in pa, you can work in a restaurant. I believe it was 17 before you could use a slicer and 18 to use alcohol while sauteeing. went to culinary school my 12th grade year of highschool in votech, then a 2 year all year round culinary school right out of highschool. best decision I ever made man, as long as you have the drive, desire, and passion for it.. and kitchens can be tough and vulgar so I hope you have the right mind for it too haha