I think it’s canon that wether in DnD or PF anyone can learn arcane magic if they take the time to do so (and they have a way to pay for it, most people can’t afford to not work for 5-10 years)

The thing is, even if someone has the money and the time maybe they don’t want to spend it, especially if magical scrolls/wands can let you cast spells fairly easily.

To me it’s the same thing as saying to some kid “you can learn to be a robotics engineer and in 5-10 years and $100k of debt you’ll be able to make robots that can do anything for you, including being strong” and the kid just replies “That’s cool, but I think I’ll just go to the gym thank you”

It somewhat makes sense in universe though, if any guy who spends a few years in a magic school can best your guards/rookie soldiers without a sweat there would only be magic users!

Not exactly, most of the characters seem to call the company E Corp but the main character (who’s also the narrator) “corrects it” in his head.