Because if you advertise, potential customers will find you via Google. If you are active on social media, potential customers will click on your linked website. If you are recommended, people will also search for you on Google. The same happens with every other marketing strategy you use.
When well thought-out UX design is combined with creative web design, site visitors perceive your offer as high-quality. They are quickly convinced and make a purchase decision without any pressure.
Customers search for you or your company more often than you think. With a high-quality, high-conversion website, you can turn these "searchers" into enthusiastic new customers.
In a time of abundant offers, branding gives you the opportunity to stand out, increase your brand awareness and build trust. This allows you to raise your prices and attract even more customers.