alt Hacker NewsReminds me of the time I built a BabyButton, which was built in a way so that a baby could use it. Instead of the normal click behaviour, it was using the touchdown event, because that way the kid saw that something happened, and there was no problem with holding the button too long or moving the finger while still holding the button.
Whether you should build systems for that age group is an entirely different topic, but I found it a good challenge to design something that fits the user's needs.
It's interesting that we're so used to the GUI buttons having that specific behavior of only triggering when releasing, even if you exit and enter the button area while holding the mouse button down, etc.
IRL 99%+ of buttons work by just doing the thing as soon as you press them. But a button that works like that in a GUI would feel wrong.