When it comes to paying the fee for a course, it is those who are perceived as 'very rich', who pay late. The ones from a lower middle class or even impoverished families pay the fee in instalments, but on the exact dates on which they promised to. The obviously 'rolling in cash' types, in very expensive coiffured, clothed and perfumed glory, rattle away for weeks without shelling out a single pie. But it would seem deeply offensive and cheap to remind them of the fee. Sometimes this goes beyond the last date for payment.
The moral of the story is each person should understand finance in an objective way. Then we would know how much money we need, and plan exactly how to spend our time based on those needs. Or else we would undergo undue anxiety and stress.