This is probably because high risk behaviors and high energy falls are more common among elderly men.
Most adults fall about once every six months.
There are some disturbing data which suggests that inactivity may even protect from falls. This is difficult to study because distinguishing between fall avoidance from inactivity vs deconditioning is difficult. Drop attacks are probably fictional. Seizures are diagnosed less often than they actually happen, probably. Cardiovascular Stokes Adams attacks due to arrhythmia.