Job and age
The job opportunities available are usually inversely proportionate to your age after you complete your basic degree or other educational qualification. When you have no experience, there may be a lot of competition, but once you have 2-3 years experience, the number of opportunities available increase considerably.
After you cross a particular age, the number of vacancies available again decreases, since few companies are able to afford the higher salaries. Also most companies have a pyramidical structure.