Model Railroad Myths and Memes: Whose Train Set is it?

  

I recently came across this cartoon, fed to me by Facebook.  I asked an AI art generator to redraw this comic strip - apologies to Bill O'Malley - with a different ending that showed the father and son playing together.  I prefer a "both-and" scenario to an "either-or" in this case.
 

There's much more that can be said about this, much more.  But I'll let the images speak for themselves and leave the interpretation up to the beholder.  The question still stands: Whose train set is it?