Powdered/Concentrated Drinks for Sustainability

Concern for climate and environmental sustainability as well as health-consciousness has stimulated consumer interest in alternatives to traditional animal milks and dairy products, yet for some reason the same people who want to reduce waste, ban/reduce plastic usage, etc. haven't embraced dehydrated products as a way to reduce not only packaging but also fuel used to transport heavy liquids.

Soda fountains for home-use were marketed a few years ago, but I don't think they really caught on the way fountain drinks in restaurants have. Probably it is because consumers don't want to go through the extra steps required to re-hydrate their own drinks and other products.

It begs the question of where rehydration should best take place in the supply chain of products involving dehydration. Could local stores bottle their own sodas, soy milks, etc. and also sell the powder/syrup to consumers directly for those who are up to the task of mixing their own at home?

Or do consumers need to buy soy milk, etc. in liquid form to feel as satisfied with their purchase as if they were buying fresh (pasteurized) milk straight from the cow/vat/truck?