how can one justify the use of weapons in the hands of 18 years old

Nowadays, when teenagers turn eighteen the law allows them to use weapons. You can get a license to own a gun. Like everything, there are pros and cons. Starting from what is good, it is true that when the young generation turns eighteen they must be more aware of their responsibility. If the law says that from that age you are allowed to get a weapons license there is no point to be against this. Infact it is also true that from that age boys and girls can join both army and the air force and it means they will be trained to use weapons if the war should begin. Furthermore is better to make young people use weapons than old people. On the other end, firstly a person who has just turned eighteen is unwise and sometimes can lose control and can use weapons in a not proper way. Secondly, owning and carrying a gun can psychologically affect our behaviors and people often commit crimes. Every day we hear from social media and Television about a lot of crimes made by the young generation. This is because they are not aware of what they are doing and sometimes the worst scenario happens. Above all, if the law allow people to carry weapons, like the USA does, crimes can only increase. To sum up we can say that as everything there are two sides of the coin.