I found a standard guideline for table and chair measurements for kids furniture which i will follow for a start.
This is a supporting factor for me to stick to an estimated 30cm seat height and a 50cm table top height.
Thus, I will not be downsizing the scale of the model except for minor adjustment to the profile and the form of the structure in the ergonomic aspect.

This information was referred from
www.communityplaythings.com