To really know the age, you would have to measure it.
If it stands much taller than most, it may just be a new Super Juicer - Compactor.
What matters most is not the age, but how many trucks came to pick up your trash.
If the whole fleet came, I'd report it.
As far as looks - don't be deceived. It's the unseen condition that should concern you.
They may wash and wax them after completing the route. Especially if they're used to go up all those long, steep muddy, narrow driveways in town.