It’s lime a mutual funds but if you are going to do this with your friends, better not to because conflicts might happen especially if someones wants to get his money back instantly.
Collecting of funds and investing it is already happening with the stock market and it is being handle by the professionals so you can have more confidence with your funds. It may look higher since the capital is big, but with the trust issues, I think I will not go for this.
It is true that currently there is a crisis of trust where fraudsters work together to convince their targets to join and invest in their platform, moreover they know that there are quite a lot of funds to be disbursed. I think only a few have the courage and with a written agreement, of course, to avoid unwanted things in the future.