Answer:
Dear Sir/ Madam,
While it is essential that young people learn how to drive so as not to depend on their guardians, given the high level of traffic accidents, it would be more useful to raise the legal driving age. Not all young people are mature enough, which is why they tend to overestimate their driving skills. This puts not only them, but other drivers in danger, and results in an unacceptably high level of traffic accidents. Moreover, it is often the case that young people get used to driving and thus avoid walking, which leads to obesity and laziness. Therefore, raising the legal driving age would result in fewer traffic accidents, reduce obesity and improve young people's health.