Well i'm 52 and recently finally plucked up the courage to get 'up there' and sing (on the bais of, and hoping that, you're never too old to start). Always fancied trying after years of joining in the choruses. I was nervous as hell but just shut me eyes and did it. I sing un-accompanied. The reception was quite good and next time i went to the 'singer's night', i was kindly asked if i wanted to do a couple, so that was encouraging. Mind, on one occasion i froze completely but the reaction was 'don't worry it happens to us all' - so there you go (hope the 'Pied Piper was'nt in the audience).
So Tone, go for it!!