system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Food Delivery Apps Should Change their Tipping Model

On all the food delivery apps I use, they recommend tipping the driver on a percentage of the total bill. Why is that? 

I'm arguing that delivery drivers should be tipped on an algorithm based on distance they have to travel to deliver to the household, and not based on how much a person has paid for the food.

It's not like a driver has to do more work based on the price of the food. The cost associated with their job - gas, time, depreciation of their vehicle - is all tied to distance not price. Also, especially with higher end restaurants, a higher overall price doesn't assume more/larger boxes, it simply means the food is more expensive. I would definitely understand tipping more if the driver has to carry more packages but that's not always true. 

Is my logic sound or do I need to change my view?
gpt
The tipping system in these apps is all about incentivizing you to tip, so as to incentivize more drivers to join and get the existing drivers to do more deliveries. They have no incentive to make algorithms to "tip fairly", but you are well within your rights to do such a calculation yourself.