@Herbivore oats don't make milk. Neither do almonds or any of the other non dairy so called "milks".
That is #nutjuice, as opposed to #Nutbush which of course is where almonds etc come from.
If you need nutjuice there is a very handy point of supply arrived at by talking to the next friendly fellow who wanders by.
Unless of course you are a friendly fellow.
Enjoy. 🥔