Parsaregood
Head Pro
You could go in to the changing room through the side entrance, no problem, you would be advised not to be in the main areas of the clubhouse in such attire though.I'm pleased for you then that your club doesn't need members.
I'd never be able come to your club after work to get change to play then as I wouldn't be allowed through the door.. Also what someone wears isn't what makes them enthusiastic
Are you being purposely pedantic now then you can't see the reference towards what someone wears or is told to wear has no bearing on values