I leave the setting to ask me mainly because I want to know what sheisty app is trying to track me across apps.
Logic plays out in people's decisions. I imagine most people cannot predict their own behavior on their devices in the future, what new apps they will install and what data would be necessary to get the new apps entire benefit. With so many unknowns, it's safer to just deny access to app tracking. At a base level, most people would prefer to save money. They know that allowing app tracking for targeted ads would lead to interest in purchasing junk. It's better for the wallet to deny access to app tracking for advertising.
Logic plays out in people's decisions. I imagine most people cannot predict their own behavior on their devices in the future, what new apps they will install and what data would be necessary to get the new apps entire benefit. With so many unknowns, it's safer to just deny access to app tracking. At a base level, most people would prefer to save money. They know that allowing app tracking for targeted ads would lead to interest in purchasing junk. It's better for the wallet to deny access to app tracking for advertising.