@eric. Good stuff. I must have missed this when I was looking for a similar subject matter before posting. Most of the MMM profiles I have seen on this site seem to be singles or 2 income married folks. I have not read of many that are loaded up with kids and had made certain choices to have mama stay at home. Not judging the 2 working parent families as this was my choice. The point I am trying to make is supporting a family of 6 on 1 income and saving for ER (in my case, 55 feels like ER), takes some effort. Having experienced/experiencing the cost of kids from 13 - out of college/wedding), I can tell you braces, cars, car accidents, insurance, private school (special needs kid), proms, computers, college, ... need I go on, will hit your budget hard. Yes, I could live in a tee pee, grow my own veggies, only ride bikes, home school, and use recycled toilet paper, but I don't think that is how most of us really want to live. I commend you super young FIRE-ees (under 40) who have kids, but be warned of the snowball of kid expenses rolling down the hill... you may be in for an ER surprise.
I know the MMM hard asses get off on seeing who can be the frugal king, but as mentioned earlier, there is a live now/live later personal balance we all need to figure out and for some of the hard asses out there, you may be giving up some of the fruits of your labor to say you won the game at 30, 40. Look, for some their job is a bitch and the trade off of not working again is worth a minimalist life style... Fantastic! Again, personal choices, so no judgement here, just suggesting there might be some experiences, and yes, even some materialistic bullshit you may want experience/have in your younger more active years that you are forfeiting in exchange for ER bragging rights and super frugal life style... Balance, balance.
Shit! I just re read this and I sound like an anti-mustacian! Forgive me, I am selling everything tomorrow and buying a ten speed!
Don't get pissed off, just an opinion.