And, little is expected of them. By the time they arrive in her classroom at age 3, they are non-verbal, not potty trained, and don't know how to interact with others.
It is becoming more common here too. My daughter is 6 now and a lot of the kids in her age group can't do half the things she can. She doesn't have a phone or tablet and has very limited TV time. I see kids in prams shopping trolleys just staring at screens - easy for the parents...