Considerate Stick / walking stick

This stick is designed for the elderly ,and it will be a helping and considerate helper.
Problem
1. Elderly need stick or something to crutch.
2. Unable to open the door by shivering fingers.
3. The elderly need lighting to improve security at night.
Design Features
Provide a unlock aid which can assist the elderly to unlock the door with less force
When elderly in the dark, the stick will provide an illumination source improve security.
Piezoelectricity technology to provide energy