I think that's a bit "old-school". Many courses today have multiple sets of tees: women's, youth/senior, men's, and championship. Not wanting to be sexist, some course just call them by the color they use for the markers: red, yellow, white, and blue and you can attach your own label to them.
Most likely is as it's been a long time since I played a round of golf. Last time I played they had two sets of tees which I defined. If I remember correctly, red was women & white were men. 🙂👍