A crowded living environment will require a lot of energy to move in to because there is more competition for job positions, habitation and resources. Also, it creates an environment where moving around can become a challenge, because there may be traffic and other phenomena that's caused by a crowded population. Managing a crowded environment also can be more challenging to governors and authorities, maybe providing your daily routine with structural problems such as floods and other types of consequences if there is a disorganisation on managing. Therefore, yes, moving into a space that is very crowded require a lot of energy.