If you're at a, say, Subway Sandwich shop, where they custom build your sandwich, would you actually ask the person making your sandwich to change their gloves because they'd made someone elses sandwich before yours?

This just happened. There were two people in front of me. The gal had just checked someone out at the register (they take turns doing that) and had put on a fresh pair of gloves. The gal made the first guy’s sandwich and passed it down the line to the gal who was cashiering at the moment. She didn’t touch anything except the food. The next guy in line, in front of me, actually asked her to change her gloves before she made his sandwich. I thought, “WHAT is going through his head?” Something really stupid like, “You were touching other people’s food before mine, so you should change your gloves”? It’s not like they’d put their lips on it yet! I totally did not get that. He was weird.
I, personally, wouldn’t care if they made my food with their BARE HANDS! I really wouldn’t.