By 2030, one in six people globally will be over 60. Yet most digital products are designed by and for young adults, creating barriers for older users who represent a massive and growing market segment.

Age-inclusive design isn't just about larger fonts and higher contrast - though those help. It's about understanding how aging affects interaction with technology and designing experiences that adapt to changing capabilities while respecting user dignity and autonomy.

Physical changes with aging can include decreased vision, hearing, dexterity, and mobility. But these changes vary enormously between individuals and aren't necessarily limiting. Many older adults are power users who simply need interfaces that accommodate their specific needs.

Cognitive changes are more complex and less understood. Processing speed may slow, but wisdom and experience increase. Working memory might decrease, but crystallized knowledge grows. Good design leverages strengths while accommodating limitations.

Age-inclusive design principles include clear visual hierarchy, consistent navigation patterns, forgiving interaction targets, multiple ways to accomplish tasks, and patient, helpful error recovery. These principles benefit users of all ages.

Avoid ageist assumptions in design and content. Older adults aren't technologically incompetent - they're often sophisticated users with different priorities and contexts. They value efficiency, reliability, and respect over novelty and complexity.

Include older adults in research and testing from the beginning, not as an afterthought. Their insights often reveal usability issues that affect all users but are more pronounced with age.

The business case is clear: older adults control significant wealth and are increasingly comfortable with technology. Companies that ignore this demographic miss enormous opportunities.

Age-inclusive design creates better experiences for everyone while tapping into one of the fastest-growing user segments.