I just saw there is a very similar thread on here about boys only clubs at school so apologies for a similar topic!
My Dd's school (she is in reception) has a boys only club at school and it was highlighted in a recent newsletter. The is a mixed version of the same club too. They said about it:
"...But the boys agree that girls sometimes try to compete with them and it could be distracting having girls around."
I don't know if I'm overacting to be livid about the wording of this or not. What does it teach children? That boys have a right to not have girls compete with them and that girls by their very existence are distracting to them?!