The Bar Mitzvah ceremony marks the reaching of maturity for a Jewish boy.
Israel is mainly Jewish, so they do not celebrate Christmas. As such, they would have no reason to dress up.
Its fun to dress up!
In the Jewish faith, boys reach religious maturity at age thirteen and celebrate their "bar mitzvah, "Son of the Commandments." Girls mature earlier, at age twelve, and celebrate their "bat mitzvah," "Daughter of the Commandments".
Some people who celebrate Christmas might put up lights there
because some people may not enjoy spending time with people as it isn't their type of thing it is up to the people really whether or not they celebrate any events :)
some people celebrate it for the thawing of the plot and the quick punishment of all the conspirators but i celebrate it because of my birthday
They put up a tree have a good time
Nazis tried to speed up Jewish emigration, but other nations were hesitant to accept these people
Shivratri or Mahashivratri is a festival of Hindus , It is devoted to lord Mahadev (Lord of Lords) and there is no special uniform to celebrate it. Just like other festivals, people celebrate it either in casual or party wear.
They put up decors, have food, invite firends/family, party. You can also do something small w/ you'r family. Different people celebrate differently.
People want to celebrate special occasions by wearing fancy clothing.
Jews don't hate Christmas and Easter. They just don't celebrate these occasions because it's not part of their religion. These two holidays weren't created for Jewish people but for Christian people. The bigger problem here is: Who told you that Jews hate Christmas and Easter ? Why did that person feel he had to lie to you ? Is he trying to stir up some kind of trouble between us ?