Thank you,It is easy t o understandThis is when they do a lot of work to get your site at the top of the Google search page.
The higher the site is in search, the more often it is visited.
SEO is now used by more companies, so if you do not use it, it will be used by your competitors. The higher their position, the lower you will be.
Also, SEO is better than advertising for the site, because 85% of the results are organic traffic and only 15% are advertising.