Is the story about Prince Harry investing in BITCOINS true?

Yes it is true

There is a lot of inbreeding in that family

LOL That is on the adverts trying to con you into day trading on the Bitcoin market! NO. Nor is Warren Buffet or Elvis Presley.

The story is perfectly true. Why would anyone make up lies about a son of Prince Charles?

Every week, Yahoo picks another well known person, to drop everything else they are doing and invest in Bitcoins. I think last week was Sir Richard Branson, before that was Sir Frank Dyson and before that there was Simon Cowell.

No doubt you saw the story on Yahoo news yesterday. Who knows if it true, and to be frank, who cares?

Scam

It's about his limitations as regards finance.

I doubt it. He has more sense.