Is this universally true? In the US it appears that it just means there's more restrictions to what types of jobs you can/can't do and the hours you're allowed

Is this universally true? In the US it appears that it just means there's more restrictions to what types of jobs you can/can't do and the hours you're allowed to work, but AFAIK it's not actually illegal to work as a child. https://www.dol.gov/agencies/whd/YouthRules/young-workers/non-ag-under-14 https://www.dol.gov/agencies/whd/YouthRules/young-workers/no...