Because it is a family of languages that are perceived by many as being aesthetically pleasing, and offer a lot of features that give you a very different persp

Because it is a family of languages that are perceived by many as being aesthetically pleasing, and offer a lot of features that give you a very different perspective on programming from the typical C-derived languages. Lisp is just fun to work with. Also the sense of tradition can be appealing - it is the second-oldest language still in use, after FORTRAN, and has been incredibly formative in many respects. It‘s similar to how learning Latin doesn’t only allow you to read a lot of great works of the past, but also helps you understand modern languages.