"Sacrifice your one and only precious youth for happiness" is the TL;DR here. Also, the Saudi's are very choosy about who gets to show up and teach - a girl I went to high school actually went - after she got her masters in education.

I'm not saying some people shouldn't do this, but everybody can't. I (mid 40s male living in Canada) used to be a huge proponent of living beneath your means and did in fact sock away 20% of my income into investments. But the K shaped job market, real estate market, and cost of living in general has made that far harder to do today. I had a dirt cheap apartment in downtown Toronto ~2004-2007 before I bought a place, managed to have a fun youth AND save by simply not participating in lifestyle creep (the number of young people I knew that blew money on fancy German cars and other bling as tech salaries started to grow still makes me shake my head).

But that same apartment I rented for $700/month is now $2500 and requires a letter of employment (read they only will rent to professionals) to apply for.