Eh, I doubt it, but I suppose I can't completely discount that thought until I'm 55-60 years old. Don't get me wrong, I have my frustrating days, but I'd argue that there plenty in life that can be frustrating and that's not exclusive to T1D.
Now, if I were diagnosed 25-30 years ago that would be an entirely different story. The technology available today makes it tremendously easier to live with this disease than it was even 10 years ago.
I had a few years in my early twenties when my career took priority to my health, but again that's an issue with age/maturity rather than T1D. Consequently, I can easily see how someone diagnosed very young in life might not come to terms with the disease until they're in their 30s. Many people (T1D or not) do a lot of growing up around that time and become more aware of their mortality.