is it really bad to go against what our mommy taught us?

most of us when study abroad. usually have cash jobs or on campus jobs. we usually make every effort to send a lot of money back home . and do live a little economically. somewhere we are trying to balance everything. but what if we see two of our American(or any other nationalities) counterparts falling in love and have an healthy relationship. usually they go clubbing , have three meals in a week in restaurants and spend a whole lot of time and money in sending SMS(although u have free minutes to talk). what if we do that for a change. are we as Indians suppose to feel guilty that this is not our culture and we are not allowed to spend money on "USELESS" things like clubbing,taking Cab instead of a subway or for that matter of fact firstly get into a relationship with a girl? if we see our American friends all happy in life with doing all this. are we suppose to feel bad that y this is not our culture?