A man and woman or any combination of the two who are considering a partnership based on long-term commitment stand a better chance at happiness if they drop the gender roles and focus on working together while giving space for personal growth. A life or partnership won't thrive while limited to playing a role. Our species would become more resilient if children were not indoctrinated to fit into gender roles. We stunt our growth by smothering individual potential based solely on sex. I see it happening here and there, enough to remind me how frustratingly slow evolution is.