Am I too old to change careers?

According to the Organisation for Economic Co-operation and Development, the global average retirement age is 63.5 years, but the tendency all over the world is to increase the retirement age. With the upward shift in retirement age, workers in their 40s (and even 50s) still have plenty of time to change professions. Furthermore, the average age to change careers is around 39 years old, so being middle aged shouldn’t stop you from embarking on a new career.