I am not going to try to tell you that it is absolutely vital to know Morse code. Personally, though, I feel everyone , not just amateur radio operators, should know Morse code. The chances are you will never need it, but like the rest of these items, when you do need it, it sure does come in handy. The Essential Language lists the following advantages Morse code has over other radio emission modes - Morse code can be used when other modes are unavailable or are not in working order. Morse code is the most widely recognized means of signaling in the world.
Morse code is the only code understood by both man and machine.
Morse code is the only emission mode allowed on all amateur radio frequencies. I'd like to add a few thoughts of my own - Morse code is universal. Amateur operators who speak different languages frequently hold successful conversations in Morse code using Q-signals and other standard abbreviated jargon. Although design for aural reception, Morse code can also be sent and received visually and even by touch. I really felt a sense of accomplishment when I learned Morse code.