etc
etc.
Using
etc indicates that you do not have any serious to complete your ideas. I suggest you to finish your sentences. Or end it with full stop, instead of
etcIt would create a wealthy and prosperous life
of a person.
Besides, they feel that they have just come out from their parents' grip, they are totally independent.
This is called comma splice, occuring when you use a comma to join two complete sentences without placing an appropriate joining word between them.
Well, if you have a question that you don't like at all, then you can write with a 5-paragraph essay. You write one introduction, three bodies, and one conclusion. In the bodies, you will argue more on one side than the other by writing two content paragraphs arguing for and one against. This can help you write more words, but some seems inefficient, by writing too many words.
With a 4-paragraph essay, you are easy to develop your paragraph properly, one content paragraph for, and one against. This is good for coherence and cohesion between sentence to sentence and paragraph to paragraph, and for which in the five-paragraph structure this is weak.