Just so that it doesn't make any difference to you or your presentation doesn't mean that you should avoid it. It is a best practice to include them and semanti

Just so that it doesn't make any difference to you or your presentation doesn't mean that you should avoid it. It is a best practice to include them and semantically right thing to do. It gives a structure to your document and defines what your document is about. I don't see it as a redundant tag, not at all.