And I would hope that if people realized that the scent caused you a problem they would refrain from wearing any. However, I was amazed that our choir had to be told repeatedly not to wear perfume for concerts because one or two people refused to stop. I think at least one person even quit the choir over it.
HAsn’t been a big issue that I remember. Occasionally there will be a reminder that it is bad choir etiquette, that’s about it. We have heavy incense where I go now, that’s more of an annoyance than the individual perfume. Last place I went the Priest wanted to cense the choir. We were like, no thanks.