It's because the people hiring you are in their late 20s and have culture fit as the second most important attribute. I've seen it first hand where my team cho

It's because the people hiring you are in their late 20s and have culture fit as the second most important attribute. I've seen it first hand where my team chose a 30 year old man child over a 40 year old. The latter actually got marks against him because he wore a suit to the interview.