structure - Put text between section and subsection headings?

Are there rules about whether or not to put text between section and subsection headings (in scholarly works)?

1 section heading

text / no text here?

1.1 subsection heading

more text

1.2 subsection heading

...

Answer

If it makes sense, by all means put text there. It’s not strange at all. Neither is not having text there and just starting a subsection immediately.