There will be some that disagree with me on my response. But here goes anyway.

If you are certain that your yard is secure (they won't/can't dig out or jump over the fence), and they have a place to be protected (shade and cover), plus an ample supply of water and toys to keep them occupied, and most importantly, if you don't have concerns about someone stealing them or harassing them, then I would try it, even if you do it in short spurts for a while. But that's my opinion. I have two Golden Retrievers, who were puppies at the same time (5 months apart in age), and I did it. But they wore their collars, with proper vet and personal id, and I had them microchipped. We never had a problem, but you just never know. I knew they were happier outdoors than being gated in the kitchen (couldn't trust them with the whole house) or crated. Of course, on rainy days, I left them in. But I was lucky because I was able to come home almost every day for lunch, and when I couldn't, I had retired neighbors who kept an eye on them for me. My only other concern would be barking.....and they may not even do that. Obviously, if they are excessive barkers, you wouldn't want them disturbing the neighborhood all day while you are gone.

One of my Goldens has grown up to be a couch potato and I have to literally beg her to go outside. The other one would rather be outside than anything else. But they do still spend a lot of time outside. I am fortunate that I can be their official door opener now because my office is in my home.

Good luck, and congratulations on getting two beautiful Lab puppies at the same time! I think having two puppies is no harder than one, and they have each other for chew toys rather than you!! LOL!!! I'm envious, and I applaud you for asking questions about the pros and cons before you make your decision.

Logan