I have a few things to say about this:
1. This channel, Trump news, seems to be very biased against Biden and slanted right.
2. His "Don't date 'till you're 30" line sounds like a joke, as the adults around him laughed when he said that. I'm pretty sure he was joking when he incorrectly guessed the ages of children, too.
3. At 7:21, where the girl calls for her dad, it's not entirely clear what she's calling to her dad for, because the second time she calls for her dad, it gets abruptly cut off.
4. Given that he's been whispering to girls, I'm starting to question whether Biden's "hair sniffing was actually whispering or not.
5. The source that said Joe "groped all of our wives' and girlfriends' asses" was not only anonymous, but was posted on the heavily right biased Infowars.
Besides the video, Trump has been accused of WAY worse. Including, but not limited to, "reaching his hand up [a woman's] skirt and groping her while seated next to her on a flight," "pinning [a woman] against the wall and forcing his p**is inside of her in a department store dressing room," and "approaching [a woman's] table, [...] and forcibly kissing her."
Source is again https://www.businessinsider.com/women-accused-trump-sexual-misconduct-list-2017-12