That depends on the country, some of us have robust industrial relations laws. In Australia even just working at MacDonalds pays $30/hour. Although that's still not a lot of money it's liveable.Low-end jobs that put you in nice places tend to pay poorly, and have no longer-term career development.
Service work in the tourist industry is like that. And even with the poor prospects, there's fierce competition for the nicer places and jobs, because there are a huge number of young people looking for them.
"National minimum wage applies to all workers not covered by an industry award or registered agreement. Currently, for full-time and part-time adult employees, the national minimum wage is $915.90 for a 38-hour work week, or $24.10 per hour. For casuals, this is slightly different. The amount you’ll get paid as a casual worker for minimum wage is $30.15 per hour, due to a casual loading of 25% being applied on top of the base rate."
A guide to minimum wage in Australia for casual workers - SEEK