While I don't like your point in general, feels like a scenario meant to scare people into not sharing information, I'm wondering how age or experience are fact

While I don't like your point in general, feels like a scenario meant to scare people into not sharing information, I'm wondering how age or experience are factors independent of output that should define your pay. Seems to me if you're capable of producing equivalent output (considering both volume and quality) it shouldn't matter how old or experienced you are.