I myself am going to be 19 in a week and have a bit of an allure for pressure points. I suppose it spawns from films or the idea of power, control. I wouldn't go as far to start poking my friend (LOL, the girlfriend wouldn't be happy) but if I see videos and can see the point, I become curious and experiment on myself; but with lots of caution. I also want to learn the healing side of pressure points and hope to gain some sort of instruction in my area with pps soon.
I totally agree that pps shouldn't be practiced on others after seeing it in a video, or any other forms of media for that matter.