Scientifically, it has been shown that the human brain, specifically the prefrontal cortex, is not fully developed till 25.  This can lead to teens making impulsive decisions without thoroughly weighing in the consequences. According to the Insurance Institute for Highway Safety , Teens are four times as likely to be involved in a car crash and three times more likely to die in one than adults.  This is because of their under developed brain. When the age of majority was set at 18, we did not know about the human brain like we do now. If brains of people under 25 don't have foresight, why not set the age of majority at 25?
Pleas forgive the grammar
NO It should not be raised. If we can join the military then why should be not marry. We can vote we should marry. If we should raise marriage then shouldn't we raise thesis as well. We are adults then. we should bee able to what we want. We many be stupid but we learn from are mistakes. If you raise then age limit then people are going to have more sex with out being married. it becomes a challenged to to try to bet the law for young people. People can get marred before there 18 with both parents to yes they can. People will say no to the older marriage because its there rights that are getting messed with people like more freedom.
Raising the age of majority to 25 means people under 25 won't be able to vote, marry or join the military. If we raise the age of majority to 25 then there will be more parental supervision for those under 25, thus less premarital sex. Studies have demonstrated in the past that alcohol use prior to the age of 21 can directly impair teen brain development.  Studies show the prefrontal cortex, the part of the brain responsible for reasoning, impulses and foresight, is not developed till 25.  If brains of under 25 don't have foresight, why not set the age of majority at 25? , Teens are four times as likely to be involved in a car crash and three times more likely to die in one than adults. . This is because of their under developed brain that does not adequately perceive risks.