Yes.
Okay, I decided before I even read the post
But seriously - dog allowed to roam free? Bad idea.
The nicest dog in the world can turn, given the right trigger - my opinion, YMMV - and even apart from that there are other hazards. Tearing at garbage bags/ knocking over bins, chasing cats (natural but unfair on cats) crapping all over the pavement and/or where children play, running into the road causing an accident etc etc.
Letting dogs out alone here is also not the norm and where they are found to be, they are picked up for rehoming (or the owner is contacted for a word if the dog can be identified). That's not because we are killjoys, it's for good reason.