Expect might be too strong of a word. Hope might be better. Understand the importance of night time checks when needed and be responsible. I hate to see blanket rules applied to everybody. Some people might be stable enough that they rarely need night checks. Others might need them every night. And others still might just need them less frequently or only when circumstances dictate. At a minimum one should have a system in place so that when checks are needed they happen. My sister in law has type 1 and on a few occasions her husband discovered her to be very dangerously low at night. I don't know the details but he was her plan. Now she is divorced and I hope she has some other plan. If at our teens find themselves sleeping alone that plan will need to include the ability to self-monitor one way or another. I personally would not trust that most people will feel lows while asleep and be able to respond to them every time. Being able to make good predictions about how safe a night is going to be will be important. Checking on the nights when needed will be important. Alarm clocks, CGM's, assistance from others...whatever tools sit takes should be used.