Hello! Exactly why is SEO so important? Please explain why SEO are considered so important.
In simple words, the main reason why SEO services are important is to "Make your site ready for the search engines to send traffic to your website (search traffic or also called as Organic traffic)."
You can visit this link to learn more about seo
First, it should be said Search Engine Optimisation /can/ be important, but to what extent depends greatly on your needs. What SEO does is to 1) temps to ensure that a web page is discovered by search engines and b) that it receives a high ranking on those search engines, so that people can actually find your site.
In other words, if you want people to discover your site/page or to be able to search within it effectively, then your site had better be optimised for search engines. This is obviously important for any commercial sites, but on the other hand, not so important if you have a personal site or blog which you refer people to (or just visit on your own...).
As for whether SEO "services" (i.e. companies which optimise your sites for you) are important, well, that's less clear. The most important aspect of SEO is to have relevant data and relevant keywords, particularly in headings. Some people do this naturally, some web sites are structured in such a way that it happens naturally. Others need a lot of tweaking. That's the way the cookie crumbles.