One of the main reasons the physical calculators still exist is for schools where students use them during tests. Allowing people to have phones or any internet

One of the main reasons the physical calculators still exist is for schools where students use them during tests. Allowing people to have phones or any internet connected device during a test is a recipe for massive cheating. Schools would have to get into the constant cat and mouse game any parental control software maker gets into to have a chance to stop it and that fight usually goes to the students rather than the adults trying to lock the device down.