They're not cut out for other roles. A Silicone Valley company offered men paid leave of up to 12 weeks for the birth or adoption of a child and not one man has signed up since its 1997 inception. Sociological numskulls attribute the nonparticipation to the stigma of being absent from work. Fathers don't want even paid leave with a newborn because work looks a lot better to them. Women goo to infants.
Men see spit-up.
Having them at home full time doesn't maximize either parent's potential. The movie Mrs. Doubtfire was labeled a tribute to fathers and fatherhood but the real message was on roles. Trying to make dads into Barney is a mistake. Keep them in the world where their competitive souls can soar. No father should sacrifice his family at the career altar.