My husband is definitely a superhero. Sure he's strong, handsome, brave, smart, and can fix anything, but that's not why he's a superhero.
When my daughter was two, my husband needed to change a lightbulb in the bathroom. My daughter told him to wait, then toddled into her toy box, dug for a while, and returned with her wooden toy toolkit to show him she was ready to work. He lifted her up and let her screw in the light bulb all by himself. The pride on her face was priceless. And in that moment I knew he was a superhero.