Dogs don't need to like or interact with every dog they meet.
Neither do we interact with everyone we come across on the street.
We are their pack.
It is their purpose to focus on us.
They don't need to socialize or go to a dog park to chase another dog for exercise. They are happier going for a good walk/hike or bike ride with you and it is good for you too.
They can have dog friends and there is a difference between friends and strangers.