RandomPrincess
Keep Moving Forward
The people on a private tour still drop more coin at WDW than your average tourist, and I'm sure the Mouse knows that. Also, the services aren't exactly equivalent--a bow-tied College Program kid with a golden FastPass is not at the same level of service the private guides are providing.
I've never used Disney's VIP tour guides but we did other tours and all the tour guide we had were in their 30s or older and had worked for Disney for many years. They were happy to tell us their Disney history and how they trained and auditioned for their tour guide jobs. I doubt they are using CP kids to show the VIPs around.