In some countries engineers wear a ring on their pinky to remind them of their obligation to ethics, safety and humility in engineering practice.
In the US engineers don't get that ring and they implement product tours.
Sure it may be the engineers implementing product tours, but I don't think they're the ones pushing for them.
I'm only familiar with 2 countries where this is a thing, and the US is one of them. https://en.wikipedia.org/wiki/Engineer%27s_Ring
(FWIW, I'm not aware of any country where it's common for software folks to wear one)