guaranteeing the price of bitcoin at a certain point to someone who is new to it is a mistake because they are still new to the bitcoin market and only rely on what you say as a direction in their investment, they are not yet mature in knowledge or experience, and unfortunately they can blame you if the bitcoin market does not favor them.

it is better for you to teach them slowly and always tell them that investing in bitcoin has risks, always remind them of this so that later on they will not blame you for their losses because you have reminded them of the risks from the start.