As we frequently hear following sentences:
- Nowadays, everyone has a smartphone.
- Everyone has a smartphone these days.
- Today, everyone has a smartphone.
My question is:
Is there any difference between nowadays-these days and today? I know that nowadays and these days show us a trend and they are interchangeable. But, can we interchange both of them with 'today'? I want to understand them in the terms of usage. Thanks in advance.