i mean, perhaps not wearing a kippah sometimes because of what other people think. but what else could there be for this? helppppp
there are huge influences on behaviour from the outside world.
the european world in the middle ages was powerfully religious, and that meant most jews were religious as well. we were forced into certain professions by the church, placing us in powerful but volatile positions in society. jews were generally more scared of non-jews than nowadays, but they were less integrated.
as the west became atheistic/secular and political ideology became powerful, jews began to feel safer, and many were attracted by enlightenment ideology, becoming assimilated and often marrying into the non-jewish world. eventually the reform and similar movements gained huge ground in the jewish world, explicitly against religious tradition. later communism, socialism, secular zionism and yiddish cultural nationalism were all imported and sometimes modified versions of political and social movements from the outside world. jews began to work in areas formerly closed to them, and the basis for modern orthodoxy was laid. zionism meant that the fate of a large part of the jewish world was bound up in non-jewish international relations.
in the modern world, consumerism and materialism are making vast inroads into even traditional orthodox society.