I have just returned from one of the best walks ever with my lab and settled down to a cup of tea and mumsnet and ironically this is the first thread I clicked on 
I walked through a local estate, beautiful oods, river, streams, childrens play area, lovely. It was fab today, lots of walkers, lots of dogs and families.
I walked through quiet sections with noone around and past the play area and down to the river. I exchanged hellos with almost everyone. Dogs greeted each other, families with children stopped to pat my dag , it was a perfect example of how we all interact with each other on a good day!
My dog was off the lead the whole time. As people approached I called her to me and she trotted by my side, she did not jump at anyone or intimidate anyone. I would have put her on the lead if anyone approached who looked scared by a dog but I had no need.
My dog is well behaved and well trained. That is my responsibility as a dog owner.
I would not like a large dog jumping at me or running through my picnic or slobbering over my DCs. I respect others as I would like to be respected BUT the public area is for all and my dog should be allowed some freedom to be off the lead as long as she is well-behaved.
I wish all our walks were as lovely as mine today!