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No,,,, it does not harm you,,,

But if you add Sitemap in the footer.  it will help google too and another search engine to crawl your site efficiently.

You can use mini sitemap for your site and place it in the footer here is a link.

https://www.hitechwork.com/add-text-hyper-link-sitemap-in-footer-wordpress/

Hi i want to rank for the keyword "white sandals" on Google Australia.

Currently, the top 5 ranking pages are not optimised and specific to white sandals.

See screenshot: https://image.prntscr.com/image/WenSRHqTTFSqYNg2MHvH1A.png

To rank for this keyword, would you create a page dedicated to white sandals even though it looks like it doesn't matter and you could rank the broader sandals page (not colour specific).

Any recommendations?

Cheers.