dressing well in church and hypocritic behaviors

I wasn't raised in a family that went to church or took part in any real religious activities.  But one thing I noticed through my more recent years past is that people have stopped dressing up for church on Sundays.  What has happened and what has changed in people that has led them to take away from the traditions that were set forth so many years ago?  In retrospect, I never wore jeans to church, but I remember seeing others do this.

The other thing I noticed is that people, in general, attend church on Sundays, but then the second they step out of those tall wooden doors the opinionated, judgmental, narrow minded, self righteous, self absorbed mind-set fills the same walls of their heads as the will to sing praise to their Lord with a promise to live and walk the path He has set forth.

Faith and belief begin with ourselves.  If people are executing hypocrisy so well, then they are cheating no one but themselves.