According to Francine Deutsch, men believe they do equal housework as their wives because 

• Blue collar jobs have been outsourced and they have no other work to do. do.
• Gender norms have changed and we are more likely to be in egalitarian relationships.
• They lie about how much housework they do.
• They compare themselves to the experiences of their father's, in which case it seems like they do equal housework as their wives