[alaskayorkie]

You might search "doggie door" and find some past discussions on this. While a lot of people swear by them, some have made good arguments against them, especially when you're not home to supervise. The arguments I recall are, 1. Predators, 2. Thieves; 3. Accidents.

I imagine if you have a secure yard and no predator worries, it might be OK. Just give it some thought. I know it was enough to scare me away from getting one. Then again, not everyone has moose and eagles visit their backyards.