Veritasium is not a scientist and it’s not a scientific study
There is a bunch of debunking videos, of this and other statements of veritasium, some of them by actual scientist
MOST importantly- it’s a “discussion” on how electricity is transferred and NOT if it’s REAL !! 
If you touch 25+V you’ll get hurt and with high enough current die, I think you can find videos of real electric chair. 
If you want to experiment take bare wires with rubber gloves to a piece of paper and it will light on fire