Writing Feedback / The number of cars is growing along with the economic growth of a country [4]

In twenty years there will be fewer cars in use than there are today.

At first I should say that I totally disagree with the statement above.
To begin with, many countries in the world are still developing. The number of cars is growing along with their economic growth. For example, many families are too poor to afford a car in the past in China. The statistics show that several family possess only one car on average. Nowadays as the improving of people's quality of life, the number of families who can afford a car is increasing. This lead to the continuous increase in the car demand and consume. There is no sign show that this trend will reverse.

For those developed countries such as US, the population density is relatively low and each person in those countries possess higher per capita hold of resources. Many car-related problems existing in the developing countries such as congestion and high oil price are not a problem for them. For those people, car bring them a convenient life and yet, at the same time no much extra cost compared with public transportation. Who will change their mind and turn to take buses under this circumstance?

Last but not least, we can use bike or others as a substitute when going a short distance. But if comes to 10 miles or even longer, a car is necessary. There is still no good car substitute now.

Based on above reasons, I firmly believe that the car number will not drop in 20 years.

Writing Feedback / Nowadays social media and society all encourage people to do what they like [3]

People today spend too much time on personal enjoyment-doing things they like to do-rather than doing things they should do.
(not sure if my content below fits this topic! please advice, on the content or grammar or usage thx. )

Nowadays social media and society all encourage people to do what they like. They said that it is better you choose your major or your career based on your interest. So it seems that everyone is pursuing what they like and doing what they like. But this does't mean that people today spend too much time on personal enjoyment, which is mentioned in the statement. Below are my major points.

To begin with, pursuing what you like doesn't mean spend too much time on it. Nowadays we all tend to choose the course which we're interested in or the job which motivate us most. But we can't choose the task assigned to us in company, we also can't decide to do

homework or not to do. We have no choice. I believe most students don't like to do homework compared with going to party. But they all accept it and finish it in time because they should do it for a satisfied score. That is to say, everyone has some must-to-do work, which they just can't ignore them. University professors need to teach a certain amount of classes and spend some time on office hours with their students, no matter you like it or not. An onsite project support engineer have to deal with many chores for their customers even though those are excluded in his working scope.

Besides, I can't imagine what a mess a society will be if they spend little time doing what they should do. Our society won't function orderly in that case.

Based on the opinion above, I believe that people don't spend so much time on personal entertainment as on doing things they should do.