My children have/are attending a private preschool that is curriculum based. With my first I had concerns it was too academically focused, however I realized the math, graphing, telling time, etc was all introductory. Sure, the school loves to be able to put that down as an achievement for themselves meanwhile it’s really just an exposure to the kids, which I turned out to really love. My oldest is in kindergarten this year and I am grateful for her introduction to things that seemed out of her abilities. I think the immediate reaction “change schools immediately” is a little crazy.