Does my adult dog need to socialize with other dogs?

Dogs don't need socialization with dogs from outside their circle of family/friends. As long as you are meeting your dog's needs for exercise, training and enrichment meeting or saying hi to other dogs isn't something necessary and in some cases it's detrimental to a certain type of dog. I do want my dogs to be neutral around unfamiliar dogs and people but I never allow them to meet and interact with dogs I don't know. Too many chances for an issue.

Here is part of a lecture from one of our puppy courses but it applies to adult dogs too. https://leerburg.com/flix/player.php/1677/Early_Stages_of_Socializing_with_Michael_Ellis_Part_1

I hope this helps.