It was my son's decision to board at Eton, even though he already had a scholarship to a prestigious day school," said Mr Bali, an engineer with his own consultancy firm.
"Our misgivings were emotional rather than academic. We are a close family. We see him every weekend. Pastoral care is an important issue when choosing a boarding school.
"In some schools pastoral care amounts to pampering, which might appeal to mothers but I think it should be balanced. Boys must learn to stand on their own two feet."
Mr Bali's son eventually managed to convince him that he should go to Eton but the caring father said parents had to be very careful about which boarding school they picked.
Academic standards had to be on a par with top day schools for boarding to be good value.
He was speaking in the wake of a report that found parents considered boarding schools in Britain to be good value for money despite steep fee rises in recent years.
The first-ever National Parent Survey carried out by Britain's Boarding Schools Association (BSA) found that almost three quarters of parents who chose boarding education for their children said it was worth it.
But the Good Schools Guide warned that although parents were broadly in favour of boarding, fee levels were now approaching the psychological £10,000 (HK$111,000) a term mark and schools would have to work harder to justify the cost.