I still insist our IMC students get taught at least the basics of ADF/NDB, even though it's not a requirement. After all, should an IMC holder be backed into a corner and have to do a procedural ILS in the UK (without any GPS) he or she would need to make a fist of flying outbound with the magic needle. To that end, virtually all of them agree to doing a couple of NDB approaches during the training..