All 3 of my dogs are chipped with akc microchips. My cat is even chipped. I think having both tattoos and chips have their Pros and cons.
We had a client last week to find their dogs microchip under the skin and push it out, they get lost sq, stop being readable, some people that find dogs are too ignorant to get it scanned and they take them to shelters. Our shelter is even too ignorant to scan dogs.