I assume they will operate more similarly to LEGOLAND Florida or even the DFW-local Peppa Pig. 9-4 (or 9-5), closed Tuesdays and Wednesdays. So yeah, during the school year, high schoolers will not be able to work. I imagine they've partnered with Collin College and will be doing significant job fairs there to recruit. The issue is that they're in a rather affluent part so the locals in Frisco are going to be hard pressed to fill the positions (outside of college students and retirees). UO, while in the Dr. Phillips area and has affluent neghborhoods around it, they're also in a position to be close enough to Metrowest, Sea World (I forget what the community name is around there), and Orlo Vista where they have access to a wide range of workers.
You're not really getting that in Frisco and I don't know if you get a lot of it in Little Elm or McKinney or Prosper. So it'll be interesting to see where they pull the worker pool from.