shouldn't be materialistic

Maybe most of my tuition friend is quite rich because there are most of them live in cities.Rich change them to become a materialistic person.They wouldn't want to accept something that is out of date.I say so because they criticize my spectacles.For me,if that thing is still could be use,it's okay for me without cares about it's outlook although i know how to differntiate the overall looks.Unless it come out with some problems.