"70s, 80s and 90s babies can relate," the man wrote in the video.
Comments on the video expressed disappointment as some people realised there was no escaping the fact they are officially old.
Other TikTok users pointed out that young kids don't understand the expression "to hang up" the phone because we no longer hang them up.
via GIPHY
The man who posted the video, Daniel Alvarado from New York, said his mind was blown when he realised the generational difference.
TikTok users, for the most part, agreed with him.
"I don't like this, nope not one bit," one person wrote.
"This is actually mind blowing... and sad lol," another person commented on Instagram.