We have this in Canada because health care is provincially funded, and registered, but people have multiple residences across the country. Online registration r

We have this in Canada because health care is provincially funded, and registered, but people have multiple residences across the country. Online registration renewal services recently include geo-ip checks for whether you are renewing your ID/cards from an IP address in the province. (give your parents a heads up if this affects them, they should do their renewals when they are in town.) There is also the tax question of whether your house is your primary residence, and when you sell it it's a question of whether you pay capital gains on the sale based on whether you in fact live there or not. This is one of those cases where technology meets policy.