[eru]

Your logic is infallible. Of course, your premise is rubbish.

It's not about whether 'someone' is managing these things. Even an owner-occupier is managing their own lights and exteriors.

A useful criterion is whether the government (or an arm of the government) is managing these things. Like HDB, but unlike your typical condo management organisation. It's far from the only criterion, but it's a useful indicator.