Please review my essay

It is not necessary to travel to other places to learn the culture of other people. We can learn just as much from books, films and the internet. Do you agree or disagree?

Given the tremendous amount of information on books, movies, and the internet, some people are questioning the values of travelling; they think it is no longer necessary. From my perspective, I totally disagree with this.

First of all, unlike books, films or the internet, travelling is bound up with personal experiences, which, I think, is far more important than the knowledge about the places. Most of the time, when going to unfamiliar places, people usually confront some embarrassing, confusing and frustrating situations in which they can take that at a lifetime lesson. For example, since my uncle was born and raised in Japan where he was taught that eating loudly is an indicator of enjoyment when he first went to a restaurant in Vietnam, he was mortified by people around giving him a disgusted look; In Vietnam, loud eating is the sign of nastiness. Suppose my uncle just read about Vietnam on books, films or the internet, he would never have learned this lesson.

Second of all, travelling is beneficial for health. Seemingly, modern life has made our lifestyle quite sedentary. In reality, many of us are preoccupied with work or study and they devote the majority of their time sitting in front of computers all days, which harmfully changes our postures and damages our eyes. Watching films or surfing the internet is the same type of that non-active activity. Travelling, however, is different because people have to walk a lot. Recent research concluded that walking or any other cardiovascular activities can positively fix our postures and improve our health.

In conclusion, I unequivocally disagree with this opinion. This is because I feel that there some benefits of travelling that books, films or the internet can not yield.