So, a bit of discussion about a hypothetical me has spawned from this and I’ll say some things here:

I am from the US, have mostly rented in the PNW.

I am aware that smoking is bad and can affect other people, and that idiots running grills can be very dangerous, but I’m old enough to remember when these used to be a major use case for residential balconies.

AFAIK, generally, you can still do these things if you own (or even rent) a house in a lower density area with a balcony or patio.

Hell, I’ve lived in places and with roommates who are entirely capable of nearly burning down an apartment complex by not knowing how to cook on the oven/range in their apartment, or by just smoking inside and woops that cigarette butt or spliff or joint missed the tray.

I’m not saying it should be the case that we ignore safety concerns in more dense housing, I’m more just pointing out that things which many people are used to be able to do on some kind of residential balcony are not actually doable as more and more people live in rentals.

As for clothes lines, decorations, hell in some places even public drinking of alcohol on a balcony all being technically legal to some extent but still being against a rental contract:

Surely you are aware that the landlord and property managers hold basically all the power in these situations unless you have the time and depth of pockets to legally challenge their usually illegal frivolous stipulations.

They can just fine you and threaten eviction or withhold your security deposit, and it will almost always be 5x to 10x less expensive to just accept this than to attempt to challenge it.

Hell, I have literally never received my security deposit back, anywhere I have ever rented, despite doing no actual ‘damage’ to the unit. They will always just invent some reason to withhold it.

… Anyway, my main drive here isn’t that you should just be allowed to do whatever you want on an apartment balcony, its that these balconies are functionally useless to the renter due to them being designed as an afterthought to drive up rental costs, as well as having all kinds of functionally real restrictions unless you want to get into a legal fight with your landlord.

Basically, at a glance, the balconies are just scams, false advertising that looks like a neat bonus at first, but then you realize you can’t actually do anything on them besides maybe sit on a chair on them, if one will even fit.