What would happen when .....

I think it all depend on the way relationship develops, if one find someone whom he/she loves then all weaknesses become immaterial (as long as both parties are happy).

But when one need to go through parents to select, they would be particular about these skills.

On her case she does have anyone, she found most of Pakistani guys oversea (or upper class environment in Pakistan) drinks as matter of social trend which is unacceptable to her.