Blippy, get a grip. Would you care to nominate other jobs that allow you to take leave whenever you want? The rest of the course won't just sit around waiting for you to return.
Have you considered that the "attitude" that relatively few people can do ATC is derived from decades of experience & not just the last few years? Certainly the starting pay & wait doesn't help with attracting the best.
As Awol says most managers are just that, managers without ATC experience. And you can't just waltz in & use the sim whenever you want, if you miss a sim session it's gone - resources are finite.
If you miss an exam at uni you get to sit the sup exam - they don't hold another session especially for you. If you miss a lecture, tutorial, lab session, field trip, etc. they don't run it again especially for you. You make it up as best you can.
"Living a delusion"? Oh dear..... The fact is unless you apply a separation standard fully it's no standard at all. 90% of a standard means you have no standard & have failed to separate. Hence the 100% requirement. You're dealing with 100s of lives. Get it wrong & you put those lives at risk. You don't have time to check through the books every time you apply a standard so you need to know the rules you're applying 100%.
That's the job. Take it or leave it. We don't pretend to be perfect & all make mistakes, but if you aim to do things 100% correctly all the time you're more likely to achieve it.