What is the item you are listing for sale?
If a vehicle / motorcycle, then cash or bank transfer are the only safe methods of receiving payment, here accept not other form , no card payment no PayPal payment , you will not see these available for the buyer on your listing.
All other items when listing for Collection only, the buyer will be presented with all forms of card payments and PayPal. After purchase they must go to eBay checkout and pay by one of those means, here cash is Not accepted.
Another important factor is the buyer must bring with them a collection code, do not release the item without first scanning / entering those numbers on the order details, it's your only proof the item has been collected.
@gizby