Wow, It's nice to know that someone is not running after more and more money and enjoying life as well. To me, even if he goes to work... He escaped to rat race or atleast more than half it.
Like you said, u teached him with love and care and it paid off.
now he is proud that his food budget dropped by 70%.
Cooking is a skill everyone should have. He is not just saving on food but also medical bills.
Every financial situation is different and fixed percentages are little more than a guideline
You answered it yourself later....
"That is the core of your article and I agree with that 100%"