let me rephrase, plastic guards are not a JOKE they are good for bushes, branches and wind.
if you want drop resistant, drop protection, you drop your bike going 15mph on rocky surfaces, you want the metal.
if you are scared it will trap your hand IF it collapses, then don't tighten the inside bracket, leave it loose.
i put them there not to protect my hand, i have them to protect my LEVERS, specially the clutch lever, i always seem to drop my bike on the left side,
if i did not have them, i assure you i would have broken the clutch lever and pushed the bike home couple times now.