英语文化背景知识When you read the newspaper and watch the news on te

英语文化背景知识
When you read the newspaper and watch the news on television,it's easy to get the idea that British young people are all unemployed,angry and in trouble.But that's not true.Three quarters of them do more or less what their parents did.They do their best at school,find some kinds of jobs in the end,and get married in their early twenties.They get on well with their parents,and enjoy their family life.After all,if they don't ,they won't be British,will they?
短文意思我都懂,可是最后一句After all,if they don't ,they won't be British,will they?
是否包含文化背景呢?不懂

最后一句After all,if they don't ,they won't be British,will they?的意思是：最后,如果他们不是这样做（做指的是“英国人中的四分之三左右的人都是子承父业,他们在学校里努力学习,最后找各种类型的工作,在二十刚出头就结婚生子,他们与父母亲相处融洽,非常喜欢家庭生活.”）,他们就不是英国人了,对不对?
当然包含英国人的文化背景.英国人是一个比较保守的民族,他们非常讲究礼节,他们按照英国人的传统生活方式生活,例如前面提到的：英国人中的四分之三左右的人都是子承父业,他们在学校里努力学习,最后找各种类型的工作,在二十刚出头就结婚生子,他们与父母亲相处融洽,非常喜欢家庭生活.与其他的国家有所不同,例如美国人比较开放,喜欢我行我素...