Originally Posted by ajax

Nothing in that post indicates to me a requirement to pay for wheelchair service. The poster is merely speaking of tipping the person who pushes the chair or drives the cart. There is a big difference between paying a fee and paying a tip.

Originally Posted by Jasper2009

Apart from that I think the only occasion where tips are generally expected is when you need wheelchair assistance and the staff helps you with collecting your luggage, carrying it around etc.