Why do you say that ???
And what do you say is the right height
Beginners tend to set their saddle too low because they think you are supposed to be able to place both feet on the ground when seated. If the saddle is set too low it strains the knees and makes cycling
much harder work than it should be.
To get the height roughly in the right area, set it so that your leg is completely straight with your
heel on the pedal at the bottom of the stroke. When the ball of the foot is placed on the pedal the leg will have about the right amount of bend in and the height can be fine tuned to suit the rider from there.