It’s a common thing. Many people want to set up a website of their own for a blog or a small business and can’t afford to hire a freelancer or agency to do it for them, so they read up a bit and ask around their friends and land with WordPress.
It’s fair enough, it powers (currently) [25% of all new sites on the internet], including this one, and 30% of ALL online eCommerce sites run WooCommerce on WordPress. And as the BBC would point out, other eCommerce systems are available. Which means that WordPress powers MORE than 30% of all the eCommerce sites online. Shopping is a long way from blogging.