no way in hell i would wait that long. i honestly believe the trend in waiting too long and NOT vaccinating is going to jump up and bite us in the ass.
It already is here in WA. I was just at a vet clinic in the dead of winter/cold that told me of a breeder who told their client "absolutely NO vaccinations" on their pup til whatever age. Guess what? Parvo! Another dog (pet shop special) was being released just in front of mine after having been lucky to survive parvo (huge bill).

Kris just refuses to listen to any reason. She's had her earfuls for a year or longer on RTF (think Field trial and other high level performance folks as well as vets, whose pups are on pro trucks before most of ours have been potty trained) but still posted this nonsense there too the other day.
Rural areas are safe? My butt!

Strays and even coyotes are spreading parvo. The UPS or meter reader's truck that visits the "dump" of a house down the road runs over a pile of poo, and drives in spreading all the wealth to others. Our local rescues have had nightmares w/ parvo all winter long (I'm donating Neopar to the one group, however, it's often too late-- after the fact). I was told over 15 yrs ago we were not safe from parvo until we got up above the 4000 ft elevation level in the mountains and it would still be questionable if it was a public camp site. I had 2 pups from my very first litter come down w/ parvo at 12-13 wks (this was before we had as good of vaccines as I have now). Tell that to those folks that it's worth the risk.
Now that said, my 15.5 wk old pup, Envy, went swimming for her first time yesterday. She was at an agility trial last weekend and a (small) dog show at 11 wks old even. No WAY would I take her to a public park and allow that had she not been very well vaccinated against parvo and distemper.

She's had Neopar at 5 wks (neopar was developed initially for the puppy mills!), followed by Progard 5 at 7, 10, 13 wks (both are high titer, low passage that DOES override maternal antibodies safely --- Progard 5 was shown to provide full protection at 12 wks btw in challenge studies). I still run a slight risk of lepto (just showing up in one stream locally). We're doing Lepto vac tomorrow and in 3 wks again. This pup, like my others, has logged at least 3000 miles w/ me safely since she was 7 wks, because of my vaccine protocol--- I'm positive of that.
I've been doing this regime for 6 yrs now, ever since another breeder exposed her 7 wk old pups (you know, those pups that Kris' info says are still to be protected by mom's antibodies?) and brought it home to another *3* wk old litter that was sick w/ in 2 wks as well. 3 litters, 20-some puppies in ICU w/ parvo, 8 died, several had permanent damage.... now tell me what my risks are??? Her vet and a lab breeder/vet put this vaccination program together and ever since, no one has had parvo outbreaks. I couldn't even take my litters to the ACVO's vet clinic (this is where my friend found the parvo) at 7.5 wks for their eye checks let alone my regular vet for well checks, w/o having some protection. My vet gives me full blessings for my protocol and said she'd do the same if she was still breeding.
Anyhow, as deadly as my vaccine program probably sounds to Kris, I've not had ANY immune issues in my pups, nor have any of the others who use this (who breed alot more than I do!). The vets seeing my puppies in different parts of the state/country are sending glowing reports back to me thru the owners, thanking me for caring so much about puppy diseases.
So Kris, until you become a breeder (or even a competitor who would understand the need for early training/socialization), you may want to think again what "good" you are really doing here by putting all this propaganda on every site you manage to get into.
To the rest, yes... weigh your risks. You can have unprotected, unsocialized, and untrained puppies that never develop to their full potentials in life because they've spent their first 4 mos in a bubble, or have well adjusted, successful pups that are protected against deadly preventable diseases. Your choice.