Actually, nowadays, for a grad couple, to own a condo is no big deal. Many of them bought BTO flat very cheap, eg $200k and after 5 years MOP, they sell at $600k. Maybe after MOP they finish paying $100k, so they get $500k. Then they buy a $1m condo, loan only $500k. Easy to service the loan. By 30, their combined income should be $150k. So no problem at all.

BTO flats make many people very rich. Government give people easy money by selling these BTO cheap.