The problem is people say this about everything - schools should teach kids about cooking, schools should teach kids about personal finance, schools should teach kids basic household repairs, schools should get kids to do an hour of PE every day, schools should teach kids first aid... I once heard someone say, in all earnestness, that schools should teach girls how to apply make up and walk in high heels because they're essential skills for women
We do already do cover a bit of this stuff (not the high heels tho!), but if we tried to fit in everything that people say should be taught in school there'd be no time for the academic subjects.
At some point these things have to be parents' responsibility, and for kids whose parents can't or won't teach them basic life skills they eventually have to take responsibility for teaching themselves - I don't mean necessarily while they're still kids, but we live in a time where any adult with an internet connection and no learning disabilities can search 'how to cook pasta' on youtube and get free step-by-step video tutorials on everything from boiling a plain pot of penne, to making Malaysian noodle soup with seven different spices and vegetables you can only find in an Asian supermarket. I do sympathise with adults learning to cook for the first time because learning any skill when you're starting from zero is daunting, but there comes a point where you have to ask, how much more help we can actually give people?
It's the same reason I thought the scrapped government campaign mentioned earlier in the thread was stupid. It's not on the government to tell people to turn their central heating off when no-one's in the house, nor is it a good use of public funds - sometimes people have to use a bit of their own initiative and not expect someone else to teach them how to do everything. And if they can't manage that, well, they can leave their radiators on for eight hours while everyone's at work and complain about their astronomical gas bills, I guess