Atleast the problem with the overpopulation is solved

There are many reasons to push your dogs in a stroller, but they all still befuddle me and my simple mind.

The guy on the far left is clearly immortal.

So instead of 1 guy with flowers chasing 1 girl, now it's supposed to be 3 girls with flowers chasing 1 guy? That's a strange turn around... also am I the only one that thinks the guy pushing the dogs in the stroller looks a bit envious of the 2 guys on the left?