The newspaper said the unnamed Moroccan man is married to a woman of Spanish origin with two children, and that Mr Puech refers to them as his “children”, “daughter-in-law” and “adopted son”.
It said he was particularly touched at the way they looked after him during the Covid pandemic.
Sounds like he's a reclusive hermit who inherited family wealth, and wants to give it to the only friends/family he has.
There is no mathematical way for his work to be worth 5 billion, not even if he had magical powers and turned the whole garden into pure gold in the process. Not if he worked for 500 years straight, every day, without a break.
A billion is such a fantastically large number people can’t relate to how much more it is than any normal job pays in wages.