Only one, but you’re equating critical thinking with knowing another language and I dont know why

I'm not equating critical thinking with knowing another language. I'm using monolingual people as an example of people perfectly capable of critical thinking and learning, no different than people who are only familiar with Windows.

There’s infinite number of guides, tutorials, and if you can’t read theres YouTube videos for learning a new language-- just because you haven't learned a 2nd language, I don't believe that means you don't know how to learn.

There's little kids who are bilingual and multilingual, but I wouldn't point to them and ask a monolingual adult if they're less willing to learn than little kid.