I work at a place where half of the people speak dutch, the other half come from all over the world.
It helps when everyone speaks the same language, English in this case, and can jump in and out of conversation whenever.
It's illegal for them to actually ban the use of Dutch, as this is in Belgium. But it's also just a dick move to exclude people from conversation, just because it's convenient to some.
I think it depends on the rate of change, rather than the amount of containers.
At home I do things manually as things change maybe 3 or 4 times a year.
Professionally I usually do setup automated devops because updates and deployments happen almost daily.