Question about element=subarea

Hello everyone.

I’m posting this question because I would like to know if it would be okay to add administrative elements as a “subarea” of other administrative elements, for example, adding the 18 regions of Continental Finland(admin level 4) as subareas of the element “Mainland Finland/Manner-Suomi”(admin level 3).

I’m asking also because I noticed there is no information about it on Finland’s OSM data and I know some OSM communities consider the “subarea” information redundant/unnecessary, but I think it could be useful if you use a lot of OSM administrative data.

I’ve already added some “subarea” tags(Mainland Finland/Central Finland/Åland) but I can remove them, if it is a problem.

Thank you for your help! :slight_smile: