Agree Flight it is very difficult to cook homemade grub if you haven;t been raised by someone and you absorb that info as you grow up. The amount of times I have served up raw or overcooked to leather food.
And just to learn the basics like how to make an omelette, boil poatoes so they were not rock hard or alternatively boiled to much took some time, as i am a pretty impractical person.
Tbh what helped were those colmans packets. I would follow the instructions on the back of those, this would give me confidence and the cottage pie, bouef bourgignon or whatever I made would be homemade to me (even if nutritionally it would be a bit suspect), and I did that until I had the confidence to follow recipes from books. Now I am more of an instinctive cook and makes things up and just have my fave recipes which I have committed to memory.
So, it is easy to tell a crap cook 'follow a recipe' but some people would not have the confidence in their own innate ability to do so - say like cook an onion until it is soft you may go 'is that soft enough?' and then worry that the recipe is going to wrong.
But it is so worth it in the end and I love cooking (not baking though, you really wouldn't want to eat any cakes I make, I am crap!) and now I cook really complicated means from scratch, for example I toast and grind my own spices for homemade curries for imnstance. And my dd is learning all this as she grows up too.