People have become so selfish and self consumed

They walk around in the supermarket like they are the only ones on earth with their head in the clouds.
Its like they are alone on the planet and its all about them.
Im not talking about dumb people im talking about people who just don't care how inconsiderate they are and they have actually started to enjoy getting in other peoples way.
It is getting much worse by the day, today was worse than a week ago.
This can not end well.