The surge in the aging population is significantly impacting various sectors like healthcare, housing, transportation, and technology. Design holds immense potential in fostering an inclusive world for seniors. Crafting products, services, and settings attuned to their needs promotes independent living and dignified aging. Guiding principles for designing amid this aging trend include universal design—creating spaces for all ages and abilities, age-friendly design—tailoring spaces to elderly requirements, inclusive design—welcoming diversity, and health-conscious design—supporting senior well-being. Beyond accessibility, designing for seniors aims to empower and engage by reflecting their physiology and experiences, fostering a sense of value and community connection. Converting the challenges of the graying population into opportunities, elder-centric design can construct a universally accessible and comprehensive world.