I have recently started looking into plywood furniture construction here in the Philippines and for multiple reasons. For shipping container homes it makes sense as you can construct some very multi functional furniture very easily which suits the needs of shipping container homes. But just as much so in many countries you can get things pre-cut at the store you buy it from giving you perfectly straight edges for your projects if you arrive with a cutting list.
On top of that budget wise plywood can offer some good finishes on projects and not look tacky. Here in the Philippines often furniture is overpriced and has poor laminate finishing which often breaks its seal and begins to blister and peel quickly. Plywood in many cases can replace a lot of this substandard products with something more unique,usable and custom made.
I used to look at ply sheeting as an inferior product until recent years where its mass produced nature and cost make it viable for many things and not just things like interior cladding of a shipping container. The fold down bed from the wall for example is one of those projects that can be done with plywood reducing costs of materials but also means the bed is only needed during the evening and conveniently folded away afterwards. I have prepared a space already for constructing the bed project myself as an experiment, but can already see the benefits of the double bed space if the bed is removed during the day.