Sections are a bit more approachable than custom fields for most of the users I support, though both can function similarly.
Ultimately, they’re just looking for a convenient way to categorize their tasks in a way that suits them. I’m currently encouraging folks to use the group by due date setting (with subgroups as necessary) and this works pretty well. However, new users are immediately presented with sections in the default My Tasks views and they become familiar with sections as they use Projects.