Soe of them are very stylish)
When it comes to this, you have to be careful. Too many restaurants don't care about the dress code and the staff is wearing a simple shirt. Of course, the type of restaurant differs. For example, you aren't going to wear a tuxedo at an oceanfront restaurant or a shirt at a fine dining one. You have to adapt yourself in order to make sure that it goes along with the vibe of the restaurant. I've seen too many of them that were fine with whatever piece of clothing, but clients do notice this and they are paying attention to details.