Paul Muldawer, aka, paultheATLartist literally stumbled into TikTok.

His grand daughter and daughter tried to introduce him to TikTok by making a video of him showings his art on a wall, a kinetic photomontage that changes as you walk by.  As he walked by he crashed into the wall and let out a loud yell.  This video went viral and thus was the beginning of the journey.