Border terrier? I've got one
No, border collie.
But speak for yourself, love. I was brought up to watch dog's body language. Studied animal behaviour at uni etc etc. Admittedly there are some stupid dog owners out there and clueless non dog owners who will run up to a strange dog and start patting it on the head
Your qualifications, knowledge etc in the grand scheme of things are irrelevant though to the point I am trying to make.
When you have a widely accepted view that it is okay pet any dog you see as long you approach slowly with a hand out and stroke under its chin and/or ask the owner if it’s okay it puts people and dogs at risk because a large proportion of people cannot accurately read body language.
Hence why I say that it is safer for everybody concerned to not interact with strange dogs.
I know my dog and a lot of my dog owning friends can say the same thing. If someone strokes her, I'm on hand just in case I need to intervene, but I've never had too
Discomfort signs can be subtle, YOU may be able to read your dog perfectly but many people can’t.
And if a dog does get uncomfortable, it is very possible for them to react before you can intervene.
This border and the last border I had were as soft as warm butter with people
Thats nice but plenty of dogs aren’t.
My own dog isn’t at all aggressive but she is somewhat aloof.
She will be polite but usually, she would rather not be touched and actually, of the adult, mature dogs of friends and family I have/do know well (dachshunds, JRT, pug, shih tzu, patterdale, retrievers, chihuahua, staffy, other collies) none of them are genuine ‘social butterflies’ and actively want much petting from strangers though they will all accept it politely.
I question how much strangers ‘saying hello’ is for the dog’s benefit tbh.