Sixteen is not a footnote

Alberta has three, and the middle one is the restaurant's: under 13 may not work at all, 13 and 14 stop at nine in the evening and may work two hours on a school day, 15 to 17 may work until midnight. Ontario has one band, and all it says is that under 14 is too young — Ontario sets minimum ages by workplace, 14 in a serving area and 15 in a kitchen, and sets no hour limits at all.

One row per province would have had to average those into a figure no legislature ever passed.

Canada: read from each province's and territory's own source, one at a time — 23 bands across 14 jurisdictions, because Alberta has three and Ontario has one and averaging them would produce a figure no legislature passed.

United States: the Department of Labor's table of state child labor standards, as published on 15 July 2025, transcribed state by state. Where the table is wrong the state's own source wins — its row for California's 16- and 17-year-olds repeats the under-16 figure, so California is read from its own Division of Labor Standards Enforcement. 20 US jurisdictions set a nightly limit for 16- and 17-year-olds, which federal law does not; in a restaurant, that is the band that closes the bar.

Under the minimum age for the jurisdiction. Past the nightly curfew. Over the hours allowed on that day. Over the hours allowed in that week. On more days in the week than the state allows. All five are errors, not warnings — nothing a restaurant signs makes it lawful to put a fifteen-year-old on a closing shift, so there is nothing here to override.

Null for almost everybody, and asked for only where it changes what may lawfully be scheduled. It never leaves the manager's payload — a colleague looking at a shift card is three columns and a join away from it. Type one, and the jurisdiction's own words about somebody that age appear on the spot.

On the board the person carries a marker on their avatar, because being sixteen is true of every card in the row, not of the one you happened to click.

Each location can give its school year, a first and a last day that repeat every year, and the school-day limits follow it. Left empty, school is assumed to run Monday to Friday outside July and August, and every screen that depends on that guess says so. From June 1 to Labor Day, the later evening limit applies where a state sets one. Breaks inside the year, like spring break, still count as school days.