SEO will ALWAYS remain important and valid. As long as search engines continue to exist, you’ll always leverage your SEO knowledge. In fact search engines will live forever, whether it’s Google, YouTube, App store / Google store, etc. This is more like a virtual monopoly that will continue to evolve.
You can utilize your SEO expertise to drive organic traffic for your own sites/businesses, friends’ sites/businesses, freelancing, owning your own SEO agency, or hopping around working for different agencies to broaden your scope and experience.
This field is underrated. SEO is the lubricant to all the compartments of a “vehicle.” You can integrate SEO data & knowledge to make Paid Media (or SEM) more effective–which is called SEO/SEM integration. You can further enhance UX, Content, and Tech/Devlopment teams with SEO as well.
SEO is so broad that every client you work with will require different needs based on their scope, budget, and priorities. More so, it remains relevant to all industries. Any brand/company out there needs a virtual presence to sell or brand themselves online. So learning & mastering SEO is a vital skillset if you wish to play the game of search engines and their algorithms.
This was a broad and random rant. Hope this helps. Feel free to ask more Qs 🙂