why will there be more information and service jobs in the future ?

Answer 1

The premise is because things have become increasingly mechanized. Who knows? 20 years ago they predicted that jobs would be increasingly technical because of mechanizations; instead, more jobs are menial, requiring people to flip a burger or make beds in motels.
That's why people need to keep up with the news and what is going on, to hopefully prepare no matter what the future may bring.