Gambling is risky and investing in a bankroll is a much riskier. Now having other people to access your wallet is not a good idea but if you want to take the risk, then you might hit a jackpot like when you gamble. Anyways, I found your idea a must try one.
I disagree that investing in a bankroll has more risks than gambling. Investors are recommended to invest big just to receive a better profit share and there's a couple of risks to it like the possibility of the casino stealing the investors funds but that's unlikely on trusted casinos. When you invest on a bankroll you're not giving access to your wallet from my experience it's more similar to lending without the exact dates and interest.
Investing on bakroll is like having a share from profits based on how much we invested,right?
Gambling is one of the most profitable investment so if anyone invest on it have chances of losing their capital unless the site steal their money.