Usage of landline phones dropped in India by a huge margin. Share your views.

We all are familiar with landline phones but the usage of these phones is decreasing cosiderable day by day. Actually one day i was using my smartphone and eventually my friend said give me any idea to buy a cheapest landline phone which makes me so confuse that i don't really have i single thought to suggest him.

I was in a speculation that who uses landline phones today. What your thought guys..do you really need landline phones in use in todays world or not.