There are two currencies in this world: time, and money. The latter can be used somewhat to help out with making efficiencies for the former, but you'll never get any more of the former once it's used.
That, to me, is the essence of YMOYL, mustachianism, etc. So no, I don't think that "mustachianism" isn't for me. I do it differently than some of the people on here, I'm 26 and am looking at a life trajectory that has me living pseudo-FI'd in the next couple of years while I go to college[and draw down my GI bill], I don't have a family nor do I have all that much interest in founding one, and I don't even know if I look forward to not working and being retired. To add to that, my employment in the Navy, my current job as a technician, neither of those have I enjoyed, and my personal dream is that there is a job out there that I will look forward to waking up in the morning to do. You know what? It's not housework, I can tell you that.
But I do look forward to having absolute freedom with respect to employment. Today, if my employer fired me, I wouldn't sweat it, I could live off my savings for ~5 years without changing anything.
But a time when that savings could last the rest of my life? That's something worth working for. FI, "Fuck you money", yeah, this I can get behind. And every decision I make in life since reading MMM, YMOYL, and ERE and learning about FI is focused on being frugal, maximizing enjoyable efficiencies in life, minimizing damaging choices and hobbies to that goal.