How people can afford take out? Uber eats etc charge rates are insane like 20$ per order (don’t forget the driver tip). I also noticed they have a variable cost

How people can afford take out? Uber eats etc charge rates are insane like 20$ per order (don’t forget the driver tip). I also noticed they have a variable cost as well aka if you order food worth 100$ you pay more compared to if the food was 50$. Like this adds to the delivery cost.