In other words it is the same as it was 50 years ago when I went to school. There was and still is bad, good and very good parents and what you get is a pure accident of birth. It is the individuals responsibility to assess what they got given in life and to try and make up for the good things they missed out on or the bad things they can avoid passing on to the next generation if they choose to.
It annoys me to hear politicians raving on about how they will make parents take responsibility for their kids. If your kid wags school you can't handcuff them to the classroom. You can pass on your values but if they don't accept them there is not a lot you can do. We create our own lives, not parents, teachers or politicians.