Almost three-quarters of recent graduates plan to change career by the time they are 35, a survey says.
Many graduates wanted to 'make a difference'
The Teacher Training Agency found that 73% of workers who had left university since 2003 expected to spend 10 years or less in their first profession.
Meanwhile, 72% said they expected a different career by the age of 35.
Many workers wanted to do jobs in which they felt they could "make a difference" to people's lives, a poll of 1,778 graduates aged 21 to 36 found.
People in their early 20s were particularly keen to move on, with 40% planning to spend only five years in their current careers.
Of the 69% of graduate workers who said they were planning a career change, one in five was considering re-training as a teacher.
Graham Holley, executive director of the Teacher Training Agency, said: "Today, almost a third of newly-qualified teachers are over 30 years old.
"This means our classrooms can draw on a far broader range of talent and experience."
The poll found 14% of those planning a career change wanted to work in the media or publishing industries and 11% in IT and telecommunications.
One in 10 wanted a job in banking and the same number wanted to work in the civil service.
The TTA's online survey was carried out on its behalf by YouGov.