Interest being deductible is just one way of incentive ownership. In Canada they don't make interest deductible for your primary residence (you can deduct it fo

Interest being deductible is just one way of incentive ownership. In Canada they don't make interest deductible for your primary residence (you can deduct it for rental properties however), but you're exempt from Capital Gains tax when you sell your primary residence. It's not exactly the same, but it's trying to create similar behaviors. I imagine if you took away one, people would look for another deduction here.