Median age of companies going public rises to 13

[Music] All right, kind of goes to what we just talked about. For years, the sort of prevailing wisdom was private companies, they grow and then they get public as soon as possible. But some new data shows that that strategy of going public quickly to IPO, whatever, is going by the wayside.Let's find out why. Here now, CNBC wealth editor Robert Frank, who writes about this in inside wealth. Robert, Brian, great to see you.So, if you look at IPOs so far this year, the good news is there's been a lot of them, ...