How long does it take people to change shoes if needed?

My clipless shoes have Velcro. Bend over undo four straps and slip them off. Slip on dress shoes tie. Done.

If I was commuting to a construction site and needed to lace up eight inch steel toe boots that is a bit longer.

But really shoe changes don't take long.

It is not a justifiable reason to oppose clipless.

Edit: I would probably spend more time ensuring my laces are not in the chainline if I wore regular shoes.