My first house, had an attached 2 car, it was a new house new subdivision.
The garage contained 2 cars nightly and 2 trash cans, nothing more. I lived in a "association" the lawn was mowed, house painted, driveway plowed, walk shoveled, trees cared for. About the only thing that was not done, was my **** wiped when I took a dump, that and I had to get my own mail.
I had a 10k sqft shop at the time, sitting on 1.5 acres across town. That is where all my "stuff" was. I had up to 60 vehicles there at one time and several 48-53' dry van trailers full of parts. Shop had 6 bays, plus a body bay and a paint booth. and about 2k sqft of indoor parking. I made a living on at that shop, and you guessed it, there was a wrecker there (thats where most of the 60 cars came from)
So sometimes the empty garage, is really no true sign of how much baggage someone is carrying, they may just not have it home.