Pursuing theoretical research in graduate school does not necessarily require undergraduate research experience, especially if experimental work is unappealing. However, graduate programs often prefer candidates who demonstrate research productivity, whether through theoretical or experimental avenues. Engaging in any form of undergraduate research can provide valuable skills, such as problem-solving, analytical thinking, and teamwork, which are crucial for a career in science. Even if the research is not directly related to future goals, it can offer insights into the scientific process and foster unexpected ideas. Additionally, contributing to calculations or computational work can be a viable alternative for those leaning towards theory. Overall, while not mandatory, undergraduate research is beneficial for developing a well-rounded skill set.