Design thinking is the process for solving problems for designs of any kind, whether that is 3d printing, designing a robot or any gadget, or just designing a online site. All of which include the effort of design thinking. a lot of thinking process is required to be put into a design plan. If you would like to make you're plan of designing successfully, then you are most definitely going to put in some effort. If you do not put any effort or thinking into you're design plan then it will most likely be too immature or effortless and not a lot of people will know what you're plan for design is. That is what design thinking is and why you should put in effort towards it.