What happens when you want a career change at 30?
If you contemplating a career change at 30, that is perfectly normal. After all, it's normal to think about whether or not the grass is greener on the other side. And what better time to do it than at 30? After 20 and before 40.
1) Do you enjoy your career enough that you see yourself doing this for another 20 years?
By mid-career, dragging yourself out of bed to do something you dread becomes increasingly difficult. Your motivation wanes and if you aren't at the top of your game, it becomes harder to climb that ladder. Faking an interest in your job is a disservice to yourself and the company you are working for. If you don't enjoy your career, then a career change at 30 is not a bad alternative. It becomes increasingly difficulty as you get older because if you find out 10 years later that this career isn't what you wanted, you've "lost" 10 years already.
2) Are you willing to take a pay cut or go to graduate school?
Alternatively, you could get an MBA or go to Law School and then find a job through the school's network. This is one of the best ways to make a career change. I've seen friends who were accountants and had the hardest time breaking into investment banking, but were able to do so after getting an MBA. Employers almost expected that you change careers coming out of law school or business school.