Is this a rapidly growing field? Is it possible to predict the future needs of workers in this field?

Though the answer to this question depends on which field you are working in. However, you have to make sure you are telling all the good things about the field and your focus should be on telling more about how it is growing and helping the industry.

The future needs of workers can be predicted by concerning all the possible factors around the organization and industry for any field. It all depends on how the company makes its plans.