@bix yes - tho tips have two issues ... when in a restaurant you tip the waiter and the restaurant will have a system that spreads the money everywhere - batman , kitchen, bitlke washer etc
If you tip the delivery person none of that is likely to happen - it stays in that system delivery person and company who delivery person works for - AFTER they have taken 25 or 30% of the total bill
Not a system that can help restaurants get back on their feet.
Before - meal price plus 15/20 % to restaurant
After - meal price minus 30% to restaurant AND 30% to nameless corporate greed monger and any tips maybe even staying with them - until they get caught out.