men who prefer younger women often tend to be the stereo type that just want to show their mates hey look mate my birds better than yours kind of thing maybe its an ego booster, ok thats not all of them and its normal to be proud of your partner and want to show them off a little.
ive also known a lot of lesbians who like to have the 'dolly bird' on their arms too.
then again maybe its just me that doesnt want to admit that im getting a bit over the hill *winks*
i tend to go for older men but its the person i like not their age.