There are hotels in Europe without any staff. You drive up and check in via a machine that issues your room key, the door unlocks and you go up to your room. Then you eat from vending machines, stay the night and check out, all without any human contact.
This concept has now been brought to classroom education. There’s a coding school – started in Europe, just like the hotels – that offers programming courses without any teachers, and does not issue any diploma or degree qualifications. It’s open 24/7, and it’s very popular.