No collection of people who are all waiting for the same thing are capable of holding a natural conversation. Even if the thing they are waiting for is only a taxi.
As with Cesc Fabregas, some players who go and play for foreign clubs improve on a cultural level. It makes them grow on many levels; intellectually, because you have to learn a new language and adapt to another culture, and on a footballing level too.
Children, if they haven't been introduced to foods by the time they're 3 years old, are afraid of it, as if it would hurt them. They don't really get out of that until they're 6 or 7 - it's a safety mechanism, and you're not going to win.