Or just remove the strap from a set of toe-clip pedals and off you go.

Only issue I can see (and this is the 50* forum) is aggravating the tendons/ligaments, etc.. in the front of the foot or developing plantar fasciitis, all due to poor foot support from soft soled shoes. Most riding shoes are stiff enough typically to do a good job of supporting the soft tissue on the bottom of the foot. You can use an SPD mt. bike style shoe on open pedals that helps with support.

I get "hot foot", a pain in the nerves under the outer ball of the foot, caused by (as I discovered) age related stretching of the tendons that connect the toes to the foot. The stretching transfers pressure to the outer toe area with significant pain resulting. Pads placed under the middle toes helps alleviate the problem, so does a wider pedal cleat, and I'm now using SPD-L Look style pedals. I will shortly be moving to carbon soled road shoes as well. This is all so I can up my weekly mileage over 150.