I think what might suit you better is often referred to as a campus pedal. I have them on the bike I use for casual family rides. They allow me to clip in if we're going for a longer ride on a bike path or just go platform if we're heading to the neighborhood park. These Forte's is what I have and like them for their purpose. I also noticed some Shimano's that were a little more expensive when I Google'd campus pedals. According to the description they will accept straps. However, I don't see the need for straps if there is a clip-in option.
https://www.performancebike.com/fort...on-non/p920939