In my opinion, nowadays there are still some yuppies in Catalunya, maybe a little less than in the past.
Yubbies do exist as well, perhaps currently there are more yubbies than yuppies, it seems to be more "fashionable" than being a yuppie.
Middle youthers are a increasing group, I think, as there are a lot of people who refuses to grow up and they continue wearing and living as if they were still in their twenties.