I would also add pay by card where possible, that way you have some recourse to getting your monies back if any of the schools etc fold... not trying to be a downer, but practical, also look out for the likes of....
https://www.airpilots.org/scholarshi...-scholarships/
https://careers.ba.com/work-experien...ng-scholarship
https://careers.ba.com/future-pilots
I wish good luck to him
I would also add when starting his ppl look at getting his class one medical done, no point blowing a load of money to find later he can’t hold a commercial licence.