Some clubs have restrictions. One of the clubs in the story used to have the ludicrous situation that a talented female player, in the England training squad, who was actually forbidden to play off anything other than the reds.
It's not just being able to play from the tees, though, it's about having a meaningful par/SSS. I often play bounce games from the yellow or whites but with only men's par/SSS I have no way of measuring if my score was actually any good or not.
what about a slope rating would that solve it?