Canine: two factors,
1. Population growth which causes there to be significantly more 19 yr olds than 23 yr olds
2. dating styles being more rigid and girls by and large beging dating a year out of sem (2 yrs out of HS) age 19, and boys not begining to date until 22/23
OC; glad you have a opinion. Please back it up with data. The overwhelming majority of boys are married befre the date 3 yrs and by five years they are almost all taken.
Even your idea that boys are more fussy (which may be true- but would only a minimal impact on the crisis because the fussy ones also get married wihtin a few years) is a result of them having the hammer and being able to be fussy… ???
But the good news is that as of the last few years far far more guys are dating and marrying girls their own age.