I define "poor" as anyone who is in the low % of citizens who live below the poverty line -- the vast majority of which are inner-city residents in all major cities.
Young people who are in families that are above the poverty line are NOT poor.
The polls of protesters I've seen over the last few weeks indicate that most come from middle-class families. Inner-city poverty-stricken protesters are few and far between.
Kinda simple, really.
since most middle class have a shit ton of debt they are arguably poorer on paper than homeless people so that depiction isn't all that accurate.