student: hey government can I have some money to go to university
uk government: sure here you go. you'll have to pay it back but only when you're earning £21,000+ a year, and if you don't pay it off after 30 years we'll just write it off, don't worry about it man
scottish government: nah man just go to uni we ain't gonna charge you
canadian government: yeah sure what do you parents earn? oh that much, well this should cover about XX% of it all, you or your parents will have to cover the rest and remember to start paying it back 6 months out of university - you've got ten years to do it
us government: no. you gotta pay it yourself. upfront. your parents have to save up from the moment you're born. good luck, fucker.