why do you like to be a doctor

I want to be a doctor because of the reasons as follows:first,as a doctor, i can help the sick peole;second,nowadays doctor can earn much money;last but not least,i can take care of my family.
我想成为一个医生,有以下几个原因：第一,作为一个医生,我能够救死扶伤；第二,当今,医生收入还不错；最后一点,我还可以照顾好我的家人.