As a pup our black lab would jump up at people (some people would even invite her to jump up) and we would scold her for doing so, "It's ok, I like dogs would be the common reply"
It's not damnwell ok!!, what if she jumps up at a child or other infirm person we would reply.
We don't like strange dogs coming up to us or our children and try to train Maddie not to do so even though she is so soft that 16 month old will lie on her without a flinch and she stands by as the cats rob her food, but what can you do when thoughtless strangers actually encourage her to go to them.
When we take her onto the beach she is obsessed with chasing her ball and pays little attention to other people and dogs but then some yappy little rat, out of control will start pestering her and us