There are several reasons why small businesses might choose to use WordPress for website development. Some of the key benefits of using WordPress include:

1. Cost-effective: WordPress is an open-source content management system (CMS) that is available for free. This makes it a cost-effective solution for small businesses that are looking to develop a website without incurring significant costs.
2. User-friendly: WordPress is known for its user-friendly interface and easy-to-use features. This makes it a good choice for small businesses that do not have a lot of technical expertise or resources.
3. Flexibility and customization: WordPress offers a wide range of plugins and themes that can be used to customize the look and feel of a website. This allows small businesses to create a website that is tailored to their brand and their specific needs and objectives.
4. SEO-friendly: WordPress is designed to be search engine-friendly, which means that it is easy to optimize a WordPress website for search engines like Google. This can help small businesses to improve their visibility and attract more visitors to their websites.

Overall, small businesses might choose to use WordPress for website development because it is cost-effective, user-friendly, flexible, customizable, and SEO-friendly.