Link to a site map on all pages in footer: still useful??

[Selena-Quintanilla]

Hello Friends little question of the day,

1. Is it useful for SEO to have a page with all the site's links? (in the case of a site that does not exceed 100 pages)
2. Is having a link in the footer and therefore all the pages to this page a good strategy or just one link to this Site Map is enough?


( I already have an XML file for the sitemap)

thanks in advance?

 

[Selena-Quintanilla]

Just for info the page of my sitemap according to my google search console say :
"Detected, currently not indexed"
I don't know/can't draw any conclusion,)
A hypothesis is that this page was not useful to him, therefore not indexed?

PS : Sorry for my english this is not my native language!