Hmm, I've never had a puppy, but this is what I think. My old dog was adopted when he was 3 and he had aggression issues. I was young and didn't know what to do, and my parents didn't know anything either, so we didn't hire a trainer. This was because he was never socialized as a puppy. Maybe it's just me because of this but if I ever get a puppy it is going out with me everywhere. It was so hard to have a dog that would attack any other dog, person, or cat. Now he doesn't care because he is so old, but it was a nightmare before. He was so weird, give him 30 seconds and he would never ever ever hurt whatever that thing was again. He is sooooo good with my rabbit and when he was little was ok with my mice and hamsters and rats (yes, I was crazy).. but not at first.
Well, of course I loved him anyway, but I wished he would have been socialized. That being said, I would carry him everywhere, and let him socialize with your friends dogs that are up to date on vaccinations in yours or their house. He NEEDS socialization. That doesn't mean you have to take him to the park and let him sniff random poos.. depending on where you live I think it might be ok to take him on walks. My neighborhood is clean with sidewalks and I have never seen a stray dog in my life, so I wouldn't worry about diseases like that. It really depends on your neighborhood.
Anyways, you probably shouldn't listen to me since I haven't had any experience with puppies.. but I have had experience with dogs that weren't socialized and it was hard to have a dog like that. I'm lucky that Max loves everyone and everything (besides my rabbit), and I got an older dog since I was afraid he wouldn't be good with people or dogs like my dog was. Oohhh sun, time for a walk
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