Why? What do they or their creators get out of it?
Source? Like 20+ years of ubiquitous surveillance, tracking and micro-targeting.. and yet non-pet owners still get ads for dog food, males get ads for feminine hygiene products, single people are offered deals on family vacations, and people who just bought a car get car advertisements for the next 3-5 years which only taper off when it might actually be time to buy another car.