> You're ignoring the potential effects on property value.

Bingo. Surprised nobody else brought this up. Not to mention the neighboring home/property owners are going to be pissed off because it's a potential drag on their property value. Though the stigma against section 8 may not even be warranted. I wonder whether there are any studies on the effects of section 8 on communities.

One of the few things our government (UK) has got right with housing is to ensure nearly every development includes social housing.

It's not perfect though as you get ridiculous situations like social housing in modern apartment blocks in the middle of London that no average worker could afford.

Or separate entrances for the social housing flats and regular flats in the same building (regular as in how it was intended to be built, not with extra walls to create extra rooms or with no living rooms at all).

Or with social housing residents being asked to pay separately for communal areas maintenance (because the government doesn't pay for that but you can't really stop people from walking on the grass) that they didn't ask for.

Nothing is perfect but it's a long way forward from complete segregation.