Online videos are not entirely accurate when it comes to guinea pig ownership. Videos show what people want to see, not what the reality of piggy keeping actually is. The older the piggy, potentially the more they've settled in, th more used to handling they may be. They may also the most handleable of the particular persons piggies, therefore making the best videos for human entertainment.
Yours may never get used to it though. I personally feel you need to follow their lead.
Yours may never get used to it though. I personally feel you need to follow their lead.