Everyone can learn to read.
See, this is exactly my point. No, they absolutely cannot. Over half of adults in America are functionally illiterate. I'm close to someone who teaches middle schoolers to read who struggle, usually with a combination of horrible educational background, low income situations, intellectual disability, or hardship caused by having to flee their country of origin, for their own safety.
Even if we had universally offered free classes to teach reading and cooking (we don't, not even close), there still would be many people who wouldn't even be able to take advantage of them, for various reasons.
What I'm really arguing here is against the absolutist attitude. It's just not helpful and it sets you up mentally to be even more disappointed in people than you'd be without the attitude...
Edit: the fact that this comment is getting downvotes tells you all you need to know about why people have to choose veganism in spite of your horrible messaging about it, and never because of it.