Yes, 1 in 3 will go missing. Every year. It is a proven fact. No matter how well trained your pet is, things happen, unfortunately. Fireworks, loud vehicles, car accidents, random squirrel chasing, whatever... I can't count how many times I've heard someone say "my dog will never run away".
Without any ID, pets may never make it to a home, let alone to YOUR home.
Do the math for dogs, that is approx. 300,000-400,000 dogs that arrive at shelters each year that are microchipped. This is a good start, but much too far away from where we should be.
Doing some more math, this means some 9,000-12,000 lost family dogs that end up at a shelter will likely not return home because the owner simply did not #registertheirchip.
Last math quiz... This represents another 30,000-40,000 lost dogs that may likely not make it home to their family because the owner moved or changed their phone number and simply forgot to update the chip information!
Many of them are not connected into national databases. You need to research the free chip registration sites to be sure they participate in the AAHA Universal Pet Microchip Lookup Tool. The free registration sites are a great and simple tool, however so many exist that it is nearly impossible for a small-town vet clinic or shelter to check everywhere. This is why the AAHA Universal lookup tool is the sure way that anyone can find your registration info within minutes of scanning your lost pet.