While it's not exactly a classy thing to do I have to wonder just how out of touch you have to be to think that touching food with bare hands is the least bit unusual. What kind of bubble-boy sterile environments do you think your food is prepared in? Chefs handle food all the time with bare hands.

Most restaurants don't have waiters and waitresses touching food, firstly because it's just not classy and doesn't impress the customer. But mostly the real reason is just because then their waiters and waitresses would have to wash their hands repeatedly which would slow down the food service. It's just simple efficiency.