Question

What do you mean by street stall holders?

Answer 1

A market stall is a typically immobile, temporary structure erected by merchants to display and shelter their merchandise in a street market or other setting. Stalls are easily erected, taken down or simply moved on wheels. The same type of stall is also used as a display area at fairs and conventions.
I hope this helps you

Answer 2

The markets or the stalls which are practically immobile in the street are known as street stallholders.

The merchants place a small stall or a shop to display their merchandise.

They can be erected or taken down simply on wheels.

They are commonly seen in fairs conventions exhibitions etc.

These are not permanent businesses.

These are small business done for living.