I try not to read things like that precisely because it is so depressing, and it's only statistics anyway, which can be twisted to show pretty much anything you want. My mum is still here at age 70 having been T1 for 47 years, she has some retinopathy but no other complications. She lived through 20 years or so of not being able to test her own blood sugar (I don't know how anyone can get good control under those conditions!) and to my mind is fairly lax about things now. Whereas my daughter has been on a pump almost from the word go, my mum thinks I'm far too fussy about trying to achieve perfect control but I can't help it, I have to do my best for my daughter! And whilst there might not be a cure in 10 years, maybe in 30? Who knows - but I reckon our children's chances are much better than those of our parents' generation.
So if my mum is still doing ok at 70 with HbA1c higher than my daughter's then I reckon my daughter's chances should be pretty good as long as I can teach her to take care of herself. And of course any of us could drop dead tomorrow - of brain haemorrhages, heart attacks, accidents etc - but if you worried about all of those things that might never happen you wouldn't enjoy life at all - so better not to worry about it! Just do your best to look after your own health (and your children's of course) and that's all you can do 🙂