Yes, it is an odd question.

The main purpose would be so that I could hop on the bike in regular shoes and have toe clip retention, or clip in with cleated bike shoes. The combo platform/SPD pedals have a similar idea, but I've ridden either toe clips or clipless my whole life - my first bike at 8 y/o had toe clips - and feel insecure with mere platform pedals.

The secondary purpose would be so that a particular vintage bike can keep looking "right" while I ride it clipless.