https://phys.org/news/2018-07-age-affect-job.html

The researchers investigated what is more important for people to change their job—the current unemployment rate, their personal openness to new experiences, their age at the time of the job change, or their level of education.

They found that both individual characteristics and the labour market are factors in career mobility. The results, published in the European Journal of Work and Organizational Psychology, show that people were more likely to change their organisations, industries, and occupations when they were younger, with the age effect being strongest.