Yes, I have some thoughts. I have had the benefit of quite a bit of training. I won't bore you with the details. Suffice it to say that in my not so humble opinion, that without that training & experience, I should not have been able to sing in a bar every Saturday night for a couple of years running, or unamplified at Silver Dollar City without that training. I can't recommend proper vocal training highly enough for those who really want to keep on singing without damaging that precious instrument, the voice.
Jim