I wondered if there's anyone else who enjoys penpalling. I've been doing it since I was around 16 and have 14 penpals at the moment. I'm 37 now. A couple of them I've been writing to since my teens, others I've got over the years and a few recently from Instagram and Postcrossing. So far I've met 2 of them in person. One might be coming over next year from Finland.
My 8 year old DS became interested and wanted post so now has a few penpals, one in the USA, one in Spain and one in Puerto Rico.
It still seems to be a popular hobby judging by the amount of people who post about it on Instagram, even with the types of technology you get nowadays!