After checking the Essay Forum three times a day for three days, someone finally help me with my writing.
That's because people ask for help more than they give help. I wish all the essayists would go help someone whose essay has not been answered. Even if people are not good at English, they can still leave a comment about the essay. Everyone feels better when someone has read their essay.
Let's work on the beginning again: People "never stopped" ever since the aircraft was invented. That is awkward. Let's do this:
During the time that passed since the aircraft was invented, people have never stopped their efforts in the airline industry.
Far less certain, however, is whether the endeavor in the development of airplane is particular served for wealthy minority or the normal majority?---good sentence!
Singular noun: "it"
Despite the growing popularity of air travel, it still poses a huge challenge for majority people because of their budgets.
You write very well!! Keep practicing with us, and please go help some other writers because most of them can learn from you. You have strong English writing skill compared to most people in this forum, so check out EssayForum Contributor Page.