Why was Sacajawea willing to take risk and travel with Lewis and Clark?

Sacajawea was willing to take risks and travel with Lewis and Clark primarily for the sake of her family and her people. Accompanying the expedition provided her with an opportunity to aid her husband, Toussaint Charbonneau, and contribute to the survival and success of the group. Additionally, she saw it as a chance to gather knowledge and resources that could benefit her Shoshone tribe, as well as to reclaim her cultural identity after being taken from her people. Her invaluable skills as a translator and guide further motivated her involvement in the journey.