[Phanatic Luvr]

The reason I believe that The Villages Insurance requires those who are seasonal residents (not full-time permanent residents) to have a Home Watch Service is to be sure there is a watchful eye, for the homeowners best interest. For example, if you God-forbid, your home would start to show signs of crack lets say, your Home Watch Service should immediately let you know as this maybe the onset of a much larger problem. Or, lets say, someone left for an extended period of time and forgot or didn't know, to shut their main water off. Let's say a pipe burst, if you had someone in there checking once per week, could be a lot less damage than if you were gone for 6 months.
The reason I am giving these examples is I know from experience. I own and operate a service here in The Villages, which I can't not say due to no longer advertising on this site but am also listed with The Villages Insurance as one of their recommendations. And, you must be insured and bonded to be on their list. Just protect yourself from a fly-by-nighter. Makes sense to me.