Investing in Bitcoin generally involves risk, but in all cases there is risk. So if you only want to invest in Bitcoin I think it's generally less risky, because if you actually want to deposit money or do any business there will be risk. So relatively I consider investing in Bitcoin as less risky, as the Bitcoin market is very volatile at present. And if you look at the beginning of Bitcoin, then of course Bitcoin has gone from the lowest price to the highest price.
Then think to yourself that early stage investors have had the most success in recent times if they've held on to their holdings. So if you start investing in Bitcoin from now and keep it for long then you will definitely get maximum success.
I'm a bit confused with what you're saying, how can investing in bitcoin be less risky when you admit that the bitcoin market is so volatile?
Also, I don't think investing in bitcoin is any less risky than putting money in a bank or business, which seems counterintuitive to what is going on. While the whole world recognizes that investing in bitcoin is much riskier than traditional investments.
To put it bluntly, no investment can give high returns with low risk, including bitcoin, the higher the return the greater the risk and bitcoin is one of them.