Dogs and their owners

I know I'm going to get a load of criticism on here but here goes......

My wife doesn't like dogs and I'm neutral but a few questions: -

Why do people think that everyone will like their dog?

Why do 90% of dog owners have massive long leads and let their dogs roam everywhere when they are walking through the site?

Is it acceptable to allow dogs to mess on someone else's pitch, even though the pick most of it up?

How much yapping from a small dog is acceptable?

I'm a very easy going "live and let live" person but I find most dog owners ignore the rules.

Sitting here having just watched a loose dog from next door pitch have a shit on the grass opposite, the owner had walked down to reception. When he came back I told him what had just happened, his dog then came onto my pitch and started licking my leg - NOT what I wanted.