Is it possible to disable nodes for a list field the same way it’s possible to disable them for the writer field? Without disabling them, users can convert a list field into a text field, which is not the idea. (Also, it defeats the whole point of a list field in my opinion.)
The documentation says you can disable marks but no mention of nodes.
I always prefer Structures to Lists for this reason. There may be a way to disable the nodes (prevent from removing them), but I like the UX (add/remove/reorder) of the structure better even for single column structures: