I think it's frankly quite disingenuous and rude to imply that people who do not want to work 60 hours per week and/or wait to "play" until they are in their late 40's are somehow inferior. 60 hours per week is really not a general definition of a "comfortable lifestyle."
I came from a fully funded program, no debt, etc. - and I still felt like your post was unnecessarily aggressive towards those who are not "grinding" as hard. Having to work your butt off just to have no debt in your FORTIES is not something I would recommend to others. Those "woe is me" stories can help others make better decisions. I'm glad that you're happy with your choices, but I think you should acknowledge that most people would not be - and to be honest, it's more understandable for them not to be.
I never implied or said that they were inferior so that's twisting my words. I'm simply saying there are options - I guess it depends on what you are willing to tolerate. I went into a non-funded program knowing there would be concessions to be made early on until that debt was wiped away. I worked nearly 50-60 hours a week in grad school - now I am just well compensated for it so not much has changed nor does it feel arduous. What is the general definition of a comfortable lifestyle?
I guess I just hear a lot of people expressing dissatisfaction with compensation but there are definitely options out there to increase it if you are willing to make the concessions.