YouTube Premium allows users to legally download videos for offline viewing within the app. However, these files are encrypted and cannot be transferred to a USB drive, TV, or shared easily.
of a YouTube video is also against YouTube’s terms, but in some countries, it may be considered "fair use" for personal, non-commercial educational use with children. tamil rhymes video free download mp4
If you just need to without downloading actual MP4: YouTube Premium allows users to legally download videos
Instead, use the legal options above.