Given the ubiquity of YouTube, that may have been the best option for uploading she had. Yes, “we” know there are many options, but when there is a bright, shiny, button that says “upload to YouTube” then why not use that? After all, that should also work for sharing videos with family members.
> when there is a bright, shiny, button that says “upload to YouTube” then why not use that?
This was already answered by klyrs further up the thread: because the videos are subject to YouTube's policies which commonly involve altering or destroying parts of the media without warning.