Man, I hadn't made the connection between my historical MUD experience (shout out Dark and Shattered Lands!) and my relative comfort in TUIs despite my somewhat non-technical background. My son is turning 7 this year and I'd love to get him into something like DSL....it was such a valuable experience for me across a variety of aspects -- obviously reading/typing certainly, but also strategy & problem solving, math, imagination, empathy/social interaction....What an incredible gift it was to have grown up in a time when graphics were worse and our brains weren't completely hacked yet.