Another was mps-youtube, a CLI client which was hands-down the best interface YouTube ever had. Search (videos, channels), list-creation, download, and playback preferences (audio-only, which I largely prefer, full video, specified video resolution and/or audio quality, etc.), all locally managed without any obligation for a YouTube account. Of course Google killed it by way of its API key. See <https://news.ycombinator.com/item?id=36149183> and generally <https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...>.
2. Just how much autonomy, wisdom, and ability to counter teams of highly-paid and highly-qualified attention engineers do you expect children and infants to possess? Or even their harried and distracted parents?
Arguments for self-restraint against commercial addiction merchants have played poorly for well over 150 years, going back to the unregulated hawking of morphine- and cocaine-laced products, amongst others.