I consider myself a part of FIRE, but for me it's more about the philosophy. I totally agree that living on nothing for 5-10 years is unrealistic and depressing. But the thing is, everyone should review this idea and FORM their own opinion. Some of us are okay with that, and they live this way anyway. Others prefer a luxury lifestyle. It's all about an individual lifestyle.
No one should ever take any advice at face value. The goal is to educate ourselves and ask questions, so we can take away as much as we can. For example, I took away the idea of setting the date for myself, but I'm okay if it takes me longer. I'm not going to eat nothing but burritos for years. But at the same time, I don't want to spend a ton of money on take-out food. You don't really need a BMW, but you should get a decent car if you want/need it. People buying expensive cars is a separate conversation on its own.
The world isn't white and black, it's often very much grey. You don't need to go the radical FIRE route or the FOMO route. Everyone should choose what works for them to be financially healthy and happy at the same time.
I, personally, have been saving most of my money since I was a kid, lol. I started doing FIRE before I even learned about it.
Since I got my first job, I've been saving as much as I could. But I enjoy sushi and Chipotle a few times a week, love to travel and spend money on experiences. Buying a ton of clothes and Gucci bags isn't for me though. This is my version of financial independance and financial health. To each their own.