Great post and point we'll made. Mention to anyone that you are a train modeler and they are circuit and love to see pictures, videos, and your running layout, and they always have a lot of ?'s.
Like anything, if you put a lot of effort into it and get the word out, you will get more back.
A lot of people don't have a hobby but could sure enjoy one, we may be able to steer them into ours.