We definitely need transportation while at a fair, unless you are parking on the fairgrounds which rarely happens due to the cost.  Most missionaries have a vehicle either to pull their 5th wheel or trailer or to be pulled behind their motorhome.

While working a fair, you will have grocery and everyday living needs that will require a vehicle.  Once we are at a churchyard, we disconnect and set up, and leave the car/truck disconnected until it’s time to move on.