I don't mind other people using jj, but I simply don't feel a need to try it. There's nothing prideful about that, it's just pragmatism.
My advice is to try it. You should like it, if you're in the majority of folks to give it a sincere shot. If you don't like it, cool. But then my advice changes. jj is probably the future. Adapt or become one of those old-timers who froze their learning in time.