Is My dog too friendly?

I have seen friendly dogs too who would treat strangers as friends. It is not a bad thing really, but if you worry about your dog might get hurt by other animals who don't want a new friend, then you might want to control your dogs when you are not at home. Don't let him go near other animals freely. Although I think all it takes is one or two small unfriendly incidents to wake him up to the reality lol. Nothing harmful is needed, just some unfriendly faces or barking from other dogs might get him to know not everyone can be a friend.