For anyone wanting interesting YT videos for their kids (and not wanting to take anything away from OP's project), I highly highly recommend thekidshouldseethis.com. It's basically a curated stream of cool videos, and I would feel totally safe letting my daughter browse it alone (she never does because we usually watch them together, but the curation is that good). Videos on all sorts of topics, and good enough to be really entertaining for both kids and adults - I can spend an evening there easily. They also have a really fantastic gift guide.
Absolutely amazing. Bookmarked, gonna be very useful in 5 or 10 years ahahah
On the other hand, it's so soul-crushingly depressing to contemplate how most youtube content targeted at kids is such brain-addling garbage fucking up their psyche in all sorts of ways, all for the sake of ad impressions... If there's a place for the expression "late capitalism" this has to be it
Oh, if you think that is bad, wait until you're looking for educational apps for them. What a total hot mess in a sector which should by rights be amazing.
