Bees and wasps will be attracted to people with some perfumes on. So if a kid tells you a bee is chasing them, it might be true.
If you are taking your urban kids to some place with... creatures ... remind them not to wear perfumes or flowery soaps if they can help it.
If a bee or wasp starts doing this it's best to stay still. She will realize there isn't a flower and leave but if she get swatted at she may get scared and then you have a problem.