Year 8 discursive writing about young love/teen marriage

Currently, the legal age at which you can marry in the UK is 16, as long as you have parental consent. Write an article in which you express your views on this: A world with no love is a world with just hate. How could you live in a world like that? No marriage, no friends… No family? Everything we do shows a resemblance of love, it is built in us as humans to show the world this basic emotion. However, when do we really find our “true love”? At the age of 16, are we really ready to marry, are we ready to even embrace the fact that one day we will meet someone, that special someone who you will spend your whole life with? If we can’t even accept something like that and be mature at that age, can we really cope with the stress of marriage? I feel to solve this, the legal age should be changed to the age of 18, and this is why…
Marriage is like a rollercoaster, you don’t know how good it is going to be until you actually do it. You will always get those who love it and will want to stay on the ride, yet there will always be those who just feel this path isn’t right for them. At the age of 16, you already have that built up stress about your GCSE’s, so how could you possibly make that choice? At your age, most of your free time, if you want good grades, will probably be spent studying, so… when will you get to spend time with your partner? The fact is, I don’t think you can, and as tough as that sounds, you can’t do anything else. I guess a lot of people in this world would love to get good scores on their exams, and good scores come from hard work. I don’t really think being married to someone at this time is even close to perfect, although you may like them a lot, you can’t really cope with distractions if you want to achieve well.
At the age of 16, your brain has not matured anywhere near to its full potential. Science studies have estimated that your brain can take up to 25 years to fully mature from when you were born. If this statistic is true, then at 16, your brain is nowhere near to being fully developed. However, at the age of 25, your brain will be fully developed and ready to go on that rollercoaster. I feel for this to be done right however, the legal age should be set to 18. This is because even though your brain fully develops and matures at the age of 25, when you reach 18 your brain should be mature enough to handle marriage as it can now handle the stress of a job. 
It has been proven that women’s brains mature faster than those of men’s. Because of this, if two people were to marry each other at the age of 16, not only will it be stressful, that couple would be in completely different periods in their maturing lives, even though they are the same age. This could affect their relationship and may even ruin it. The female in the relationship may be more emotionally mature at the age of 16 and even though agreeing to get married the male may still be largely immature and still expect the same lifestyle as a young, free and single 18-year-old male.
Taking everything into account, I believe that the legal age to marry should be 18 because, at the age of 16, the human brain is still vastly immature and will most likely not be able to handle a serious relationship. Because of this, it could cause friction between the couple and end up hurting their relationship with each other. However, if marriage was legally set to only above those who are 18, things like this would most likely not happen, and we would have fewer people who divorce each year. This, in return, could help turn our world around, into a more loving world where everyone finds their perfect partner…