Today, the average age of a group of people interested in plastic surgery is steadily decreasing. That's probably because they think the surgery is not as scary as you think.
Today, the average age of the team who are interested in plastic surgery is reduced gradually, that may be because they think that cosmetic surgery is not a terrible idea.
Today's average age group of people who are interested to do plastic surgery, there may be a growing down because I think the surgery is not a horrible idea.