Why can't I see how much votes I get when I put I'm under 13 in the settings?

That seems like a great question.
I hope Khan Academy staff see it and answer it.

Hi King of Justice,

Thanks for your question! On our platform, users who indicate they’re under 13 have some features turned off to help keep them safe online. This includes things like posting in discussions and sharing public coding projects. Since under 13 users aren't able to post any public content, they also aren't able to receive any votes.

Once you’re 13 or older, those features will become available automatically based on your birthday in your account settings.

Let us know if you have any other questions—we’re happy to help!