I don't mind folks fussing my dogs. Luckily as a gang of giant fluffies seems to attract a lot of attention! I do prefer them to ask first as while my lads are all pretty sound, and enjoy a cuddle, at least if they've asked, I can ensure I'm supervising and can step in to correct any unwanted pats or end the interaction /remove the dog if they start getting uncomfortable. We don't have children at home, but do encourage children to fuss ours if they want to. We meet a lot of people that are nervous round dogs and a big calm lunk like ours is quite good for helping them round their nerves. We often spend a lot of time at village fetes, family days, etc doing some impromptu education about always asking owners, how to approach dogs, etc.