Another big reason for not becoming a manager is often unspoken but rooted in the famous “Peter Principle,” which states that “In a hierarchy every employee tends to rise to his level of incompetence.”
While the Peter Principle may come into play when moving into management, it's not unique to that move. It can apply to levels within a ladder (e.g. SWE L5→ SWE L6). Switching to the manager ladder shouldn't be considered "rising" to incompetence. Just as a person should demonstrate the level above before promotion, a person should demonstrate enough competence at some key manager responsibilities before they transfer _over_ to another ladder.
