I still have several white hoses in one off the bays and use a short one or two when the good hose is too long.
Problem with white hoses, they are not lined. They let sunlight in and if they sit long enough you will see brown and green growth on the inside.
They were/probably still are made hoses that were lined with silver in the lining of the hose. I found one finally on the internet but never ordered.
We have two black lined, blue reinforced hoses with the safe for drinking water labels with stainless ends.
Chlorine, might kill the algae if you let it sit in the hose but the water taste like ....
The white hoses we find now are just white and thin and stamped hose ends. And when water sits in the sun the vinyl bleeds into the water and you get a dose when you open the spigot. The little silver label or seal for safe drinking water, are the ones to buy but still they let light and then algae bloom, even with some chlorine, we've experienced.
Some people wisely put the hose in or under half of a 4 inch pipe to shield from the sun and birds. Ants like to crawl up under them too.
You would think it would be simple to buy what the Customer demands or wants.
It seems cost and profit margin is the only concern most everywhere though, as everyone else carries the same thing, mostly. So you have to hunt before they are bought out and now sell only **** too.