Yeah, my parents have done the compare and contrast against cousins thing too. It's really annoying and growing up, it used to irk me to no ends. These days, I try to empathize with them, and I think it might be one of their ways to cope with having no measure of how they have been doing parenting. They look at what others have achieved and they wonder why they are getting different results.
It's rough on the kids, no doubt. I have bear the brunt of it, too since I'm almost 30 and still 'single' and THIS IS A MAJOR PROBLEM for my family. For some reasons, if a girl remains without a bf or a potential husband, they experience massive self-doubt as a parent... :x They are like, "What's wrong with you? Look at your cousins! They are already married last year!" etc.
x_____x;;;;;;;;
(i'm not single. i have a gf, and we've been together for 8 years now, but we are in the closet) (that's another whole can of worms) (haha)
But yeah. Parents can be really trying, but I do remind myself that they probably are doing it out of the best intentions. I love my parents to bits, even if they are flawed.
I do have to say that living away from them makes it easier to love them :x :x :x