Because you can risk other people's money instead of your own while learning. If you're successful then great, you'll get a huge bonus. If you fail, you may ge

Because you can risk other people's money instead of your own while learning. If you're successful then great, you'll get a huge bonus. If you fail, you may get fired but still you didn't lose your own nest egg. And if you succeed consistently, it's enough to build a track record and leave to start your own fund.