To say my boys are comfortable around bees is an understatement. It probably helps that they are largely immune to them.
My youngest son got a good lesson on the difference between domesticated bees and feral bees (and a healthier respect of bees in general) after getting stung by a feral bee (after the pic of the bee on his ear). He had gotten into the habit of picking up worker bees (which can sting) and letting them crawl on him. Our bees are pretty docile but he tried to do it with a random feral bee (darker colored bee) and it immediately stung him on his hand. So I don't think he'll be picking up bees (feral or otherwise) again which is a good thing.
None of us have gotten stung from our bees and as the hives get larger and more protective, we'll have to start wearing veils more around them. I always smoke the bees if I'm opening them up to keep them calm.