You may think so, companies are notorious for rejecting middle aged applicants in favor of 20-somethings because the latter are considered more malleable and eager to prove themselves.
That's just a polite way of saying "willing to work for less" which again means either somebody's asking for too much or someone's being exploited, which is the real issue.
Obviously its mere anecdote, but every company I have ever worked for has gladly hired middle aged entry level employees. If anything they have been preferred.