What if they have a physical disability or affect like they're pregnant or recovering from surgery?

What if instead of a simple furniture item it's a piano. Nobody can have pianos anymore unless they move them on their own?

Even if they have a disability, it still makes sense to get a simpler bed frame. The chance of anything going wrong when someone is assembling a simple metal frame are much lower.

As for pianos, they would have to get a dedicated piano mover.