When English is good--as yours is--different native speakers will have different ideas about changes. Here are "nitpicks," i.e. small things that caught my eye. These are my personal opinions.
"Stage" suggests an extended period of time and doesn't go well with "choosing." I suggest "important decision."
Since the survey was in the past and is a limited sample, not a universal truth, I prefer the use of the past tense: "cited" parents, "chose" friends, "was" the least favored factor.
"Another role model" is awkward because it leads us expect a change of subject. Perhaps "Role models other than parents were the least favored factor..."
"Authoritative" usually suggests "accurate;" e.g. dictionaries are authoritative. I suggest "influential."
"Reveal" carries the idea of exposing something secret or hidden. I suggest "mass media is more influential because it is where people get their impressions of jobs and professions."
In the last sentence, "choosing" doesn't fit. It not the "choosing" that has a disadvantage, it is the _job._
I would also mention "people who work in this field" first because, because the first task is to locate these people. "I think the best solution to this problem is to find people who work in this field, and discuss the disadvantages with them."
The focus on "disadvantages" sounds odd, so I would suggest further changes: "...find people who work in this field, and have a frank discussion with them, being sure to ask about disadvantages as well as benefits.