I am not attracted to this movement, and in 5 to 10 years at the most I will be able to quit my job, or spend a year traveling around the world if I want to. Some FIRE stories are of a sub-human stinginess to reach the goal of financial freedom, and then when they get it they still find it hard to spend the money. Also, having no obligations, lots of free time and little to do ends up with some people dying from overdoses or things like that. Those who don't take that route end up going back to work, but in something that they want, that motivates them and being their own boss. Marc Cuban would be an example.

On the other hand I am also more in favor of increasing income rather than reducing expenses. At the beginning yes, someone who wants to improve his financial situation and starts now, the first thing he has to do is to start controlling expenses and income and save. But with time, if you get into this, you end up coming up with ideas to increase your income, so you end up being able to spend more while saving and investing more.

More than the FIRE movement, what I would recommend to everyone is to improve their finances, without obsessing and enjoying the process.