Our biggest anti-mustachian choice is that we have six kids.
I spent a long time thinking about this one and after reading others comments here and still do not know how I truly feel about it. On one hand children are a choice, and an expensive one at that, however on the other they are what I believe to be ones greatest investment in this life. Not an investment in a financial terms (I wanted to be clear about this because in another thread an article referred to multiple children as a retirement plan) but rather an investment in our time on this planet.
As a younger person I spent many years traveling and living a self indulgent minimalist life. By my late-20's I had reached a place of frugality where I wanted naught and largely did whatever I wanted. Each morning I awoke with the joyous thought that there was nothing that I had to do that day. I accomplished this status though extreme frugality, the wise purchase of a four-plex over a house, and a leisure tour career of working fun jobs here and there such as ski season chair lift operator, fishing guide, or seasonal bush pilot for pocket funds and adventure. Everything was fun and self focused but I was not really all that happy.
In my experience at least, the Mustachian life for young people can be a lonely one. Your peers are all working hard, too hard to go skiing on a Wednesday. Stuck at work and can not dump everything and depart on a three day camping and fly fishing trip because the hatch started early. It also was a very unfulfilled life that seemed shallow, unchallenged, and incomplete. I accidentally had solved my problem of subsistence and when the reality struck that I could continue my minimalist path unabated it was kind of terrifying. I realized that as rents increased in time I would not have to work at all if I did not wish too. The thought of sitting idle in my safe financial nest far removed from the world for the rest of my life seemed like muted potential and would have been a major departure from my peer group and from society in general.
My friends from college were all busy getting themselves eyeballs in debt, married, saddled with kids and careers while I slept in and read books all day. In spite of finding nirvana I was not ready to throw in the towel (Foolish youthful idealism, I know.). I flushed myself out from my very Mustacian den of financial safety and engaged in consumerism and the rat race. As a result after nearly two decades I am now married with six kids and am at the opposite end of the spectrum from where I started. In my youth a day skiing wold have cost me $15 in gas and sandwich now it would be a $700 venture as I had to fill up the suburban with gas and eight people then struggle to pay for eight lift tickets and a small fortune in food. As a single person I traveled the US by small truck and small plane several times. I slept where I was when I became tired and let the day dictate which direction I would go. Now it is difficult just to get to the grocery store and back.
My life today is a massive challenge and frequent hardship. I am stressed, burned out, and very much outmatched by my circumstances, however I do feel that my days are being fully utilized and do not have that purposeless feeling I had as a carefree aimless youth. I never thought about being a parent as a young person. The life I have today was never really a planned goal. Fatherhood seemed to find me. Therefore I still do not really know how to think about all this. My children are my life's work, the best of my time on this planet and a worthy investment, however also my greatest hardship and the most un-frugal anti-mustachian choice my wife and I will ever make.
Skyhigh