do girls have more memory or is it that guys care less??

I have heard many guys complain regarding the habit of most of the girls remembering all the dates possible like birthdays,anniversaries etc etc.Girls tend to remember all the dates possible like the birthdays,anniversaries,date on which their bf's proposed to them,date of first dates etc etc..infact the list goes on.....Nd not to forget they also get pissed off when their beloved ones forget these dates.I definitely find no wrong with this habit of gals bcos they love all those people related to them so much that they can never forget such lovely moments of their lives.Its not that they order themselves n memorize those dates evryday.N comin to guys ...hardly they give importance to such things n feel its the stupidity of females to remember all those.For a guy may be he wud be least botthered if none remembers his bday,may be he wudnt get hurt if none celebrate his bday..but for a female itz definitely not the case...she expects the equal amounts of share of love which she gives ...Thats bcos she has this feeling of possessiveness of MY PEOPLE ....bcos she is more sensitive to relationships nd cares a lot abt them....Ofcourse she too has many works to do ...official work ,household work...has to take care that her people dont get hurt under any circumstances....But she definitely prioritizes her responsibilities towards family n loved ones against her official work or her personal goals.So all those guys who comment on this behaviour of gals do consider all these .