Why are some countries letting go of?

Question

British English and introducing American English in their everyday language? I went to Australia and India in the summer. Both are starting to use American words and spelling rather than the counterpart British.
Why's that? Both are British colonies.
I need a legitimate answer.

Answer 1

For India it is actually an easy answer.

Modern outsourcing has brought a large market into India for people on the telephone answering questions. There are actually schools in both India and America to teach young Indians to 'sound more American'. H&R block and many telephone companies have outsourced telephone answering to call centers in both Pakistan and India.... it cheaper than having a bunch of Americans sitting in a phone center 24/7 waiting to answer yet another stupid question.

Answer 2

Because the whole world is using US English. The same way that everyone learns Mexican Spanish and the Spanish are slowly using it too. It will hurt, but get used to it. The baby has grown up and has surpassed the father.

Answer 3

Probably because of Microsoft Word and other such software based in US which try to correct 'labour' to 'labor' , 'harbour' to 'harbor' makes people tired and angry but eventually give and say "heck, just let it go as labor or harbor.
(Even here the check spelling did it again but I had to refuse letting it change in this case)