yeah the basics are key. I looked at some on udemy recently and he even started with addition and subtraction, but the moment he got into subtraction, he just started crossing numbers out and told you to do it too, not actually explaining how this was achieved or why, being no differnt then any math taught in school. (well, assides from it being in video format so you can pase yourself. it also makes you question the actual mathematical brilliance of the instructor. Since at its core, shouldn’t math be brilliant?)
So from that experience the free ones are probably better. Having a goal in mind or purpose helps. I like the idea of dissecting the world with physics, specifically where you are achieving something in the process. But trying to invest the time and work towards something that isnt explained the purpose of hmm can damper you quite a bit.
Still totally agree with what you’re saying there though.
Just buying it gives you some motivation to figure it out on your own instead of being forced to, just like the original inventors/discoverers of the stuff did