You can set spell checker - set to UK English not American English
Of course a lot boils down to education. But, this won't help you that much if born to drug addict parents / imbeciles. Statistically, chances are you'll get off to a bad start, not a good family background combined with basically 'being none too intelligent' - bad start in life & difficult to break free from. Or is in today's society.
I'm a little leftfield example. Left school at 15, no qualifications, by 19 had been working over 3 years and set up my first business. By 24 I had a company exporting to 12 countries. Learnt on the job. If I didn't know how to do something, I found the best qualified person I could and ask them how to do it! That's still true today.
Whilst I had very little education at the time, I am fortunate - my family are not daft, history of self employment & some evidence of intelligence. My parents taught me morals - the rest I learnt outside of school.
I learnt basic maths in school and English - most other skills needed in daily life, i've learned for myself in the real world or had to do some qualifications since - my fault for leaving school at 15.
Problem is anyone can have children, the world is overpopulated - you can try to change the education system (needed), but need to address the social issues of women having children not in a family environment and people using religion/irresponsibility to have many kids which they can't support and then expect us all to. Of course those kids are poorly behaved as their parents are sitting on the sofa with the tin of beer watching football whilst on benefits, so issues are outside school as well. Figure out a way to stop the dumb & irresponsible having too many babies or look after the ones they have and we'll be on our way - except of course it won't happen, which is why we as a race ARE GETTING DUMBER.
I mean if I told you 20 years ago an orange faced crooked real estate developer / reality TV star, with 2500+ lawsuits against him and known woman groper, would be the president of the USA, you'd have sent me off to the funny farm. Somewhere between 1/3 - 1/2 of the American population, clearly do not have the intelligence to make any sort of rational decision, relying solely on 'IT MUST BE TRUE IT'S ON TV'. Within minutes of Trump opening his mouth (without a pre-rehearsed speech), it is quite obvious we are not dealing with someone intelligent, worse still, a spoilt, lying 71-year-old brat. He's paid off 100+ people with a non disclosure agreeement - so that's 100 times he's been guilty of something and bought silence. SIckening
Humanity is fucked - we are ok in small groups/pockets, but as a whole, the species does not work. Proven. Overall a horrible year for humanity, rather than work together, we split further. Now the Catalonia fiasco - did anyone mention they've been part of Spain since the 15th century and things today, well are a little different. Greed & selfishness.
Young adults should be educated about life skills/parenting much more - they should be put under pressure from a younger age which may dissuade them a little from having as many or kids too soon. (Why is it the UK has the highest teenage pregnancy rates?) - ahh yes emergency social benefits for mothers. Need to put different mechanisms in place.
In summary, the more I look around me, the more I see humanity fragmenting and frustratingly, beyond most of our control. Best we can do is look after those around us and set a good example - hopefully, some will follow.