Checklists in simple light aircraft are a matter of taste, IMHO.
I've hundreds of hours in Robins of varying descriptions and have never felt the need for a checklist - a flow scan works well before takeoff and once you're in the air, there's not much left to do that doesn't come under the heading of just flying a simple aircraft.
Most gliding clubs I know who operate Robins as tugs don't provide written checklists and frown on the use of them, as you should be concentrating on the world outside and be at the stage where you "know your aircraft".
However, if a checklist makes someone happier when they use it, why not?