I'm taught that if you're lost, D&D are there to help anyone who requires it and are only too happy too! 121.50 is a frequency which is etched on my brain!
If you are lost, but nowadays that should not happen in the first place.
People who get lost do so almost always because they didn't use a GPS.
It is true that 121.50 is a great service but if a GA pilot needs it, then he has screwed up on multiple fronts. Or more likely just followed his WW1 PPL training