What groups are included in the scope of urban grassroots workers? Thank you!

According to personal understanding, urban grassroots workers generally engage in manual labor, with low income and relatively hard work.

Most of them are workers, such as construction workers, repairmen, porters, electricians, welders, electroplating workers and other machinery;

Such as road cleaners, domestic workers, hourly workers, servants, gardeners and other "beauty" categories;

Such as drivers, waiters, salespeople, property managers, salespeople, hairdressers and other services; Wait a minute.

Ordinary occupations such as cooks, teachers and doctors should be the same. ...

Its outer edge is very wide. Most people in cities are working people at the grass-roots level. When eating, you will meet waiters, waiters, shop assistants and dishwashers, and when shopping, you will meet shop assistants, doormen and security guards. They will enjoy the tour guides, ticket sellers, masseurs, all kinds of decoration personnel and maintenance personnel at home ... it is these huge workers.

Amateur answer, for reference only, I hope I can help you a little.