Sounds a lot like the argument that people use against minimum wage: "McDonald's isn't a real job, it's just for kids in high school"

I disagree with that fundamentally. All jobs should provide security for an adult if they wish to do it long-term. Otherwise you're building economies on top of exploiting workers who can't get better jobs, whether it's due to age, education, or simply where they were born. Expecting that there will be an infinite supply of people that can't do better is a really bad bet and ends up backfiring on countries that don't adjust (see Japan).