Snow

There were snow around the summit. I could't foresee it. My son and his 3 teammates walked in front of me. I considered that I should stop them to walk more on the snow. But, I could't stop them. I thought it will be possible to walk.
Later, I thought it was my miss judgement. I should stop them and go down with them on same load.
As a result, they walked safety until they reached to goal point.
Such judgement is very difficult. I thought climbing is interesting only when climb alone.