When I was 12 years old my parents bought me a 10 speed 26" bike, it was way too big for me at the time so I used these pedal blocks. A block would go on each side of the pedal on a bike, but on the golf cart put both blocks on the top side and then add the rubber surround, which is ribbed and helps the foot make contact. $10 at Walmart.
https://www.walmart.com/ip/PEDAL-BLO...&wl13=&veh=sem