Do I need to tip the rider?
No — tipping is genuinely optional in Thailand and the Grab Express rider's fare is already part of the pickup & delivery fee. You won't get bad service for not tipping, and riders don't expect it the way they might in some other countries. About 30% of our customers tip, 70% don't, and quality stays the same either way. The tip is a 'thank you' for genuinely good service, not a payment expectation.