Every real business should have a website, for the people who don't want to deal with social media and all its noise. I make it easy to have one, without the upkeep, security updates and monitoring that usually come with it.
However search and AI change the way businesses show up, your website is where you decide what's shown and how. Your domain name, your words, your photos: they're yours. If you leave, your domain name goes with you, and so does a copy of the site.*
*The site files are yours to take after 12 months of hosting.
Try the website checklist to see how yours is doing.