Very, very few people would actually use this. What's the actual incentive from the users perspective? Pay for something that very likely will not get delivere

Very, very few people would actually use this. What's the actual incentive from the users perspective? Pay for something that very likely will not get delivered? On the off chance that if it actually gets recieved, the recipient would know that you didn't expect it to arrive? Doesn't make much sense, and in all cases, 100% non monetizable.