Rich Parents? Possibly; but it still quite an acheivement! I think it is a measure of the chap's maturity that he has applied himself to pass the ground exams and the JAR Skill Test, regardless of where the money came from.
What a great boost to this chap's confidence this must be - that an aircraft owner (the flying school) trusts him to take £20,000 of their money into the sky and bring it back safely, with no other adult supervising him!
I expect he will go onto great things!