Though Type 1 Diabetes previously was called Juvenille Onset Diabetes, it does not mean they outgrown it in adulthood. Type 1 Diabetes is frequently seen in children, thus it was called juvenille onset.
There are lots of people diagnosed with type 1 diabetes past childhood. I’ve recently seen a man in his 50’s diagnosed. Frequently adults are misdiagnosed as type 2, until they discover the oral meds aren’t working.
So, unfortunately, while we wish our kids would outgrow diabetes, it is here to stay with them for life. That is why we pray and wish for a cure.