I assume you are looking at trading college credits toward an engineering degree for work experience at a train company and you are looking to major in Robotics or Aerospace. I have a contrary point of view on this topic, but let me explain. Getting any type of engineering experience prior to graduation is a great plus to understand what you really want to major in the broader engineering field and hopefully land a better job after graduation. What I am concerned about as others have mentioned, but not addressed in detail, is the loss of classroom credits. Not taking a full load of classes to gain work experience, in my opinion, is not a good trade. Especially, if the work experience is not directly in your major field of study. The work experience is good, but I believe you are giving up the chance to graduate in 4 years instead of 5 or 6 years working at a much lower wage than what you will earn when you graduate. Stretching your educational years out for extra years will cost you (or your parents) significantly more money to get your education completed. It is not just the cost of the courses that you did not take. You will have living expenses for any additional time spent in school. I am a big believer of getting your education done as quickly as possible to land that first job and let your employer pay for any further education you wish to gain to increase your worth to the current employer or the next employer after. I think a happy medium would be to gain some type of apprenticeship or internship between summer sessions. Skip the time off for the summer and take a job in a field you believe you are interested in. During my Junior and Senior years at engineering school, I worked for an Electrical Engineering company for the summer. I got paid a fair wage and provided engineering to their Methods Engineering Department. I learned a lot during those three months. I learned what a Methods Engineer does, day in day out. I got to experience the corporate culture, the purchasing department, Design Engineering and many other fields of engineering I did not even know existed. After graduation, this company provided an offer that I decided was not exactly what I was looking for. I took my first job for a large Industrial Company that I did not really like either. I worked there a little over a year before moving on. I learned a lot, but I knew what I did not want to do. It took me two more jobs and two more years before I found my perfect job. Finally, I began working for Lockheed Martin for the next 35 years. After settling in with Lockheed Martin, I now knew what I really wanted to do. Lockheed Martin helped me with my further education at night for a number of years. I ended up getting my Master Degree in Industrial Engineering with a major in Computer Systems Engineering. I would not change a thing. Working for a large Defense Aerospace company was never boring. I worked on many exciting and trans-formative things. I wish you well and hope you find the right job for you. Hopefully, you will be able to combine your passion for Aerospace and Robotics with next robotic lander for Mars or command robots on the other side of the world or design robots to provide universal security and police presence around the globe. Get a good education, find a summer internship in your field of interest, get that first job and some relevant experience. Good luck young man, make us proud.