How Are We Meant To Know This Stuff?

 
Every year the 31st January is the Self Assessment deadline date and luckily since 2020 i have not had to fill out a Tax Return but millions of self employed do including a friend who called me in a panic a week before as she knew i was once Self Employed and wanted my advice on filling out her Self Employment page and being the helpful, considerate person i am i told her to throw a handful of £20 notes at someone else to do it because i hadn't got a feckin clue.
In the UK, along with acne and hormonal instability, your 16th birthday brings your National Insurance Number card which stays with you for the rest of your life right up unto your receive your old age pension but you don't get any instructions with it despite it being easily the most important set of numbers you will receive in your entire life.
I am aware that i had had plenty of opportunities to educate myself on all things economic such as income taxes, National Insurance, pensions (state and private), interest and savings rates, tax codes, mortgages, maternity and sickness pay but at the mere mention of anything of these things my brain switches into another mode and drowns it out by screaming 'This is SOOOOOOOOOOOOOOOOO BOOOOOOOOOOOORRRING' until the conversation has moved onto less tedious things.
The solution would be to teach it in schools but i'm not sure that works, they did that with Pi, Calculus and long division and those things stayed in my brain long enough to just make it outside the classroom door 10 minutes after the guy with the leather elbow patches had spent an hour teaching it to us so i doubt
if the difference between Class 2 and Class 4 National Insurance would fair any better.  
As i left school at 16 and have since been employed so the employer dealt with my finances or self employed so i paid someone else to do it, i haven't really had to worry about economic things but i can't help but think that if you are never taught this stuff, how on earth are you meant to know what you’re doing which leads to a lot of fingernails being bitten as the HMRC website buffers on the evening of 31st January every year.