I agree. A Type 1 might have some protection from falling off the wagon completely in the sense that they have to keep testing and taking insulin to stay out of life-threatening situations. But a Type 1 can still test and take insulin and yet easily run an A1c of 8-9% and be told that's okay by their doctor, even though it it's not. Is this any worse than a Type 2 stopping their exercise and oral medication program and running an A1c of 8-9% and being told it's okay?
Also, Type 1 DOES require ongoing decisions/support because the treatment of Type 1 has changed a LOT over the past 20, 40, 60 years and there's no reason to think there will be any less change another 20 years down the road. So it's not quite the same types of decisions as a Type 2 would make, but there are definite changes over time.
I also don't know about those diagnosed as adults, but for many people diagnosed as younger kids, there is a HUGE need for re-education as young adults. Aside from the fact that things may have changed a lot, in a lot of cases when kids are diagnosed it's the PARENTS who get the education and not the kids. I know that, for me, when I became a young adult and wanted to get tighter control I felt like I knew nothing. I'd even forgotten what ketones were or what they meant! I think a lot of people assume that those who have had diabetes since a young age must know everything about it, but at least for a lot of people I know diagnosed in the '80s/'90s, that's not the case (maybe it's different now).