It actually wasn't that simple. While they did begin to allow cast members to HAVE mustaches. They did not allow cast members to GROW mustaches. So unless the cast member was able to have one of acceptable length and thickness magically appear on his face during the 2 days per week he’s given off, he was, in effect, not really allowed to have one.
In this way, as I think you were suggesting, Disney was able to fill their need for more workers without having to pay them any more money by expanding in to a previously untapped portion of the workforce, and while still in effect controlling how most of their employees look.
On second thought, let's get a guy with huge beard doing that. Then maybe kids will stop dragging their parents on it and getting that song wedged in their heads for days.
Jack, When I started at Disney in 1995. The "casting" agent sent me out to the site to be fitted for my new costume. They asked my size. I told them I am 5'11", size 48 vest. They said, our vests only go up to size 46. The costuming worker said no problem, we'll just order you another one. Shortly thereafter, a manager ever so gently and discreetly, took me in to a side office to explain to me that certain on stage roles have certain expectations in terms of size, and that he could / would not order me a size 48 vest, and that he was sorry but I couldn’t work in that role in a size 48. He said he was terribly sorry, but since I was so close, he would hold the rec open for me if I wanted to try to get out and get a little exercise and see if I could fit in to the size 46, or they also had back stage roles he could put me in.
And even New Orleans Square could have some guys with trimmed facial hair that matches the area. Or even on Main Street... Bully times!
I'm not sure if that was completely serious or sarcastic (tone is hard to convey over the internet) but either way it exactly proves my point. Walt built Disneyland as it is because he didn't want it to be like any carnival or traveling show. Holding cast members to a higher standard than your typical theme park employee was part of that.
Having said that..... I think a nicely trimmed beard is actually nice looking on some guys.
Still, who would want one in that HOT weather?