Steady pay and hours, job-security due to shelter from economic booms and bust or changing industry trends, low/no co-worker drama. You clock in, you clock out.
Once upon a time, these were very desirable traits in a job. In a certain light, I could see it being fairly pragmatic and sound advice from a Dad who a) genuinely probably just wants whats best for their kid and b) has a narrow or naive view of vocations beyond his own direct and hands on experience.
But - lol - ROFL - what a boring job, boring way to live. omg.