all trading in the crypto market I guess is risky. but in futures trading, I think the risk will be greater. It makes anyone who will trade futures know that they must be prepared to lose their money.
Futures trading requires better skills, not just guessing the direction of market movements and playing our luck. If so, it looks like gambling.
They need to know the risk because if they live on unrealistic thought that they might became rich with this then maybe we can see them losing at the end. But if they can't really hold up the market pressure then futures is not for them because sometimes emotion is our big enemy that's why it always recommended for newbie to stay on spot for a while and learn more skills there.