I suspect, if you didn't have a very good experience of school yourself, you probably don't have the knowledge, skills and attitude to build a relationship with your child's school very easily. I suspect if you've had a bad relationship with authority in general this might apply even more strongly.
Mamatomany's brothers won't the only ones struggling with temporary job on shit pay, terms and conditions after temporary job etc. etc. etc. Many people in that or similar situations will feel, quite naturally, that no-one who runs the country or runs any institution connected with authority, gives a toss about them.
I had the delight of attending a sink school very briefly as an 11yo. The teachers were jaundiced (understandably, I guess) and the kids certainly got the message that all they were fit for was going down the pit (boys) or sitting on the till in the supermarket until you got married (girls). Certainly not worth aspiring to anything more.
Their own teachers didn't think there was much point in many of them doing well at school, or much hope that they would. These days they wouldn't even have the pit option! (No disrespect to supermarket staff or former miners, btw, it was just the message really was 'this is where YOU are going, like it or not'.)