Change, it's not quite welcomed

Since being in Spain, I have noticed that many of the students do not like change.  The minute something is different, they are quick to point it out and then complain if it is not changed back to the original way.  Maybe it is because I haven't had to deal with kids for a while, so perhaps all children are like this.  However, I feel as if Spanish kids take it to a whole other level.  This is not the most extreme example I've encountered but this incidence reminded me of how my students don't seem to quite comprehend that changes happen and sometimes they're a good thing.
First period today a new girl joined the first grade class.  Two students were late so the professor had the new girl sit down in Catalin's seat until they rearranged the seats to include her.  Of course five minutes later, Catalin comes waltzing into class.  I've noticed before that Catalin seems to live in his own little world.  But he noticed that someone was occupying his desk so the teacher told him to sit in Lucia's seat for today.  He walked around the room with the most confused look on his face until he finally got to his new seat.  Even once seated, he still seemed completely perplexed as to what was going on.  I found it hilarious.  And then Lucia showed up (her mother overslept and her father failed to notice anything was out of order), and she thankfully was not quite as baffled by the ordeal.
Also during this class Sara's desk had been moved next to Juan's.  Juan is not the best student.  He is part of a gypsy family which includes "the worst kid in the whole school".  His older brother is in one of my classes and he is a lot to handle.  Unfortunately, I think because Juan's brother is so difficult, most teachers have basically given up on Juan as well.  However, it is very difficult to get Juan to pay attention and to not disturb the rest of the class.  So I understand why sometimes the teachers sacrifice his learning to ensure the other students are able to have a functioning class.  For me, it's very hard to see someone who might have some potential given very little opportunity.  But he is a special needs student and Spanish schools can only do so much for these students.  And according to one teacher, Juan's parents do not care how they do in school.  Apparently no matter what they do, they will still have a bad life.  Coming from the USA, where the American dream states almost the opposite (if you work hard, you can better your situation), it's difficult to witness this.  Anyways, obviously Sara did not want to sit next to Juan.  I cannot blame her, he is very distracting.  But I then felt bad that Juan had to repeatedly hear that Sara did not want to sit next to him.  However, he did not seem to be phased by it and then continued to go about on his own.