This scene is in Zion Riverside Food Centre...an outdoor food hall where hundreds of folks acquire cheap, tasty meals from vendors who used to operate as footpath food stalls before the City moved them off the streets and regulated them.
Secondary School students are conducting a campaign to encourage customers to clean up tables and place trays, dirty plates and food scraps in designated processing points...looks like an affirmative action school project to me.
Lots of good humour and entertainment!