Interaction design is a form of design that revolves around user experience with a specific creation. It can be both physical and digital. The challenges that the industry could face would be agency models dying, fragmented user journeys, data-driven design, etc.
Interaction design is growing in favor of post-modern media and functions through different types of technology. There are certain fields that have a part in this: Graphic design, psychology, marketing, engineering, and also, website development.