Also, there is no category for anyone under 20 years of age? 

Pretty sure we have some forum members that are under the age of 20 that have trains and layouts and are active in the hobby.

Just a thought I had about all this information...

IMO, it would be interesting to do this survey every year. After a while I think it would show us the changes that are happening in the age groups, control systems, etc.  That is if anyone can remember to put the survey up every year and someone is willing to do so. And we all get to still be around for a few more years.

One question might be to ask if the person had participated in the survey the year before? Not sure what that would tell us, but may show something after a while of data being collected? 

I think I could be any age and still enjoy this hobby. 

What about a category  for the LC/LC+ for the survey?

PCRR/Dave