I don't disapprove of having all kids have deodorant and encouraging them to use it when needed. I would just warn against a lot of spraying and especially the poster who said they spray regularly during the session. Before the session should be enough. My asthmatic daughter was very sensitive to sprays when she was younger , walking past someone with strong perfume would set her off. Hair spray and glitter spray at competitions would set her off and deodorant spray would also set her off if a big cloud. Just a thought. Weirdly chalk dust didn't set her off which was lucky lol.