In context to modern web standards, why should developers avoid using deprecated HTML elements?

Developers should avoid using deprecated HTML elements primarily because these elements may not be supported in future browsers. When an HTML element is marked as deprecated, it indicates that it is outdated and no longer recommended for use in web development. This deprecation can occur for various reasons, often because newer standards or elements offer better functionality, improved accessibility, or enhanced performance.

Using deprecated elements increases the risk that any future updates to web browsers could lead to the complete removal of these elements, rendering web pages that rely on them dysfunctional or non-compliant with modern standards. Adhering to the most recent and supported HTML standards helps ensure that a website remains functional, accessible, and compatible across various platforms and devices, thus promoting a better experience for users and reducing maintenance challenges for developers.

While there are other issues associated with deprecated HTML elements, such as complexity or potential security vulnerabilities, the primary concern from a standards and longevity perspective is their uncertain future support in browsers. This is why developers are encouraged to stay current with web standards and utilize only those elements and features that are actively supported and recommended.