[shinratdr]

You can, if you want to live like this guy. I don't. I would rather work and spend the way I want to on my off time than spend every waking hour managing my budget without a job. If always going to the library rather than grabbing a book on Amazon or always bringing stuff from home rather than eating out or getting a coffee is key to living like this, then count me out. If $5 is unacceptable discretionary spending, then a coffee or meal out once in a while is the least of what you're giving up.

Frankly, I also think the guy is a little delusional about the future. You've got everyone on board now, something tells me that might change once you have a kid. Or multiple kids. Perhaps you already "agreed" to only have one kid, but then you are truly being naive in assuming that will stay the case. It may, but I wouldn't bet on it like this.