YouTube even offers a Creative Commons feature, such as on https://www.youtube.com/watch?v=XUY01kW8p2o : if you scroll to the end of the description it reads: License Creative Commons Attribution license (reuse allowed). I've never understood why they don't offer a download option for such videos: the likes of youtube-dl is the only way to get a copy, and it's perfectly legal. Likewise for public domain videos.
Google has zero interest in free downloads. They are in bed with the music industry which makes them some ad dollars and their client thinking is sub-zero. Thats because the public is not the client, the advertisers are. If I worked at Google I would be scratching myself behind the ears and take a long big look at what the company has become.
The same way governments and bureaucrats fuck up things like Covid responses, because they can't even imagine people not having 9-5 office jobs which are totally suited to WFH, and then blithely implement disease protection schemes failing to account for low income and precariously employed people, many of whom are working 3 jobs to pay the bills (including stuff like cleaning jobs where they work at 4 or 5 different old people's homes) - and then wonder why outbreaks spread so fast.
Googlers have probably forgotten the olden times, when they didn't have Gigabit connections to their pockets and lounge rooms, and don't even remember last time they wanted to "save a copy into a hard drive locally, like a hilarious boomer!"...