Similar to the Text field, this field has the same utility.
Should you want to give the user enough space to type in a bigger piece of text, Textarea is the most appropriate solution.
It creates a text area where the input data can be placed in several lines. It is more convenient to read and edit a text this way.
Limitation of this field: users are not able to customize the style of the text with the bold, underline, italic format, and insert pictures
For example: you might want to use this field to store an inquiry or customer feedback.