DY,
Whether they look at it like that or not, at the end of the day some girls won’t have any groom or husband. There will be no more guys left for them. And while your point of the order of what to compromise first is an interesting (and worthwhile) one, the age gap means that the sad fact is some girls no matter what won’t be able to get married (when the men run out), no matter if they even compromise everything.
So, yes, 22 is a bit early, and perhaps the more appropriate age is say 26-27 before a dose of reality needs to set it for the girls, but if we understand the age gap correctly, and if they don’t want to be left stranded to a life of being single, some of them will need to compromise both on the age issue and on the previously married issue. Both compromises will add more men to the pool for the girls who are stranded after the young guys are married.