In the past, people tended to come from large families where generations lived with each other. On the contrary, in present time, nucleic families which include parents and one or two children are becoming more common. They are (numerous) advantages and disadvantages of coming from a small-sized family.
In my opinion, there are three benefits when you are a member of a small family. First of all, parents have more money for their children, (their) education and entertainment. Children can go to better school or on luxurious holidays. These seem impossible if you are a member of/ living in a large family in which the same amount of money is spend for more children. Secondly, parents (could) pay more attention to (their) kids. It is easier to take care of youngster in a small family which has only one or two children. As a result, children would have a better life. Thirdly, members of a small family tend to get on well with each other. (This is because they don’t quarrel or fight for food or toys.)?
On these other hand, there are (also) 3 disadvantages of coming from a nucleic family. I think the biggest disadvantage is that there are fewer interactions among children. A child who has just one brother or sister will have fewer opportunities to learn social skills such as: arguing, defending themselves and so on ("so on" is not a recommended word) . Secondly, you receive less support from others than if you come from a nucleic family. For example, if you are in hospital for treatment, you will only be taken care of by one or two members. Thirdly, when your children or your elder brothers and sisters grow up, they tend to move to big cities where they have better jobs and education/ oppotunities, you may feel more lonely.
I believe that the advantages of coming from nucleic family are greater than its disadvantages. Although people develop less social skills, get less support, I think they have more money for and pay more attention to their children.
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Using too many "you", "I think/ I believe" could make your essay seems less convincing.
"Paraphrase" is a great factor that I think you should consider
That's my own opinion, hope you find this useful :D be free to add any comment