The point of that bit was "make friends with other people just like you who happen to live in other countries"
No 'politics of envy" or denigrating education - just pointing out that these people may feel smugly multicultural - but they're not. They are just meeting more people exactly like themselves.
Not making friends with people spanning generations, socioeconomic groups or education levels - but staying in their own bubble, albeit using different languages.
Perfectly 'at home' with people just like them throughout Europe, yet completely unaware of the people who are not just like them 30 mins down the road in Britain.