"Spacesuits" made for harsh earth environment, given to homeless people to protect them during winter months.
During cold months give homeless people full-body, wearable sleeping bags, made out of a durable polymer material that is easy to clean and hard to puncture.
Add a safety net between the least fortunate humans and death.
Iterate the technology that protects our vulnerable species against the changing environment.
Create an amazing product for people working/living in harsh conditions and validate it through real-life experience (of homeless).
Make life without possessions safe.
I imagine something like SpaceX's dragon starman design only dark so that dirt is less visible. Instead of a helmet, there would be an insulated, padded hood that can be zipped up all the way over the face.
The hood would be large and hold a globe-like shape so that the fabric is not uncomfortably touching the face while the person is sleeping.
The suit should include battery-powered heating elements. The batteries can be recharged or replaced at designated shelters.
It should be waterproof.
It should have passive ventilation with heat recouperation.
It should have some kind of adaptive padding that enables sleeping on the cold hard ground without the loss of heat.
Optionally (if the person doesn't mind being tracked) include a module that monitors the person's vital functions and calls an ambulance if the person is in danger of freezing or is otherwise obviously unwell.
Homeless people get to test drive the technology just like Formula one racers get to test drive the latest car tech iterations. The "earthsuits" should be iterated to become the ultimate clothing that keeps people safe in cold harsh earth scenarios but still allows maximal mobility/agility.
Signalling the person's needs to others
Instead of having to beg, what if there was a way to signal on the person's suit that the they are hungry? Low glucose or ketone detection perhaps? If people saw that someone is genuinely hungry it might be harder to ignore.