alt Hacker NewsThe pen-pal phenomenon flourished in a time when letters were exceedingly cheap to send, even internationally. People in the Eastern Bloc seized on such programs for international contacts because sending letters was very accessible even to them.
Fast forward to today, and the cost of sending an ordinary paper letter in my country is now 3€. Lots of people would be reluctant to pay that time and time again, and forget about juggling a large number of pen-pals as people commonly did back in the day.
Wow! That's expensive. In the US it's certainly quite a bit higher than it was when I was a kid, but right now stamps cost $0.78 per. I think that's going up a few cents later this year. Just looked it up; in the 90s when I was a teenager, it was between $0.25 and $0.32, so it's grown faster than inflation, but still feels manageable.