That size of an emergency fund is worth having not just for dips in work but also for relocation costs (if he ever wants to move), breaks from work to focus on

That size of an emergency fund is worth having not just for dips in work but also for relocation costs (if he ever wants to move), breaks from work to focus on new skills / further education, or even big emergencies. All of these things have happened to me and my emergency fund was there to catch me everytime.