Yes, I have seen this in parishes that allowed girls to serve. Once the boys saw girls serving at the altar, it was no longer appealing. After a while, it became only girls that served. Vocations come from boys, not girls.
Also at local childhood church both boys and girl served I notice that priests don’t ask don’t tell policy
I think reason why according to my mom we have real Feminist Yenta lawyer lady that threated to sue the priest got spook by this lady