DC's Stargirl

I thought it was kind of ridiculous that Courtney was arguing with her mom about how her father was Starman. You don't think your mother would recognize her husband in that photo without his mask on?
Well, that locket pic is kinda small, and the one she 'googled' on her computer was pretty dark. Why is it ridiculous that Starman would lie to Barbera as to who he really was? It's obvious, like in most superhero stories. There's always a hidden narrative.