I don't want to put leashes on my dogs
That's pretty irresponsible. Why wouldn't you leash your dogs?
I don't want my dogs to suffer.
Part of being a dog owner is taking care of your pets and being responsible for them. It would not be good to let others be responsible for your dogs and the damage they do.
I always give my dogs lots of treats.
Giving a dog treats isn't enough. Dogs should be on leashes because they at times don't listen and can end up acting out and hurt themselves or others. It's your responsibility as a pet owner to not only protect your pet, but to protect those who live within your community.