It's not so much anecdotal as circumstantial. If everyone was taking the loan, you probably would too. It is the same in England, were students took loans for 3,5k pounds a year and now even 9k a year.
Now I am not saying that the British system is the ideal (pros and cons) but I can certainly provide some more anecdotal evidence of many people who study for free (in the Czech Republic) and are basically wasting the system resources (both in terms of taking up spaces in classes and having the tax status of a student). But possibly even better argument for tuition is the level of funding for universities. It certainly seems greater in tuition based systems (I know the US and UK one) vs government sponsored one (like the Czech one).
Now I am not saying that the British system is the ideal (pros and cons) but I can certainly provide some more anecdotal evidence of many people who study for free (in the Czech Republic) and are basically wasting the system resources (both in terms of taking up spaces in classes and having the tax status of a student). But possibly even better argument for tuition is the level of funding for universities. It certainly seems greater in tuition based systems (I know the US and UK one) vs government sponsored one (like the Czech one).