I found this online, but it explains it pretty simply:
Age-Related Cognitive Barriers
As we age, our brains naturally change. Some older adults may experience a decline in cognitive functions like memory, attention, and processing speed. This can make learning new tech skills more challenging, especially when faced with a constant barrage of notifications, pop-ups, and information overload.
Vision, Hearing, or Fine-Motor Skill Challenges
Small font sizes, low-contrast colors, and touchscreens that require precise movements can be major obstacles for older adults with vision or dexterity issues. Hearing impairments can also make it difficult to understand audio instructions or participate in video calls.
Fear of Making Mistakes
Let's be real, we've all accidentally deleted an important file or sent an email to the wrong person.
For older adults who may be less confident with technology, the fear of making a costly mistake can be paralyzing. They may worry about breaking their devices, losing important data, or falling victim to scams.
Lack of Interest
Sometimes, the simplest explanation is the most accurate: some older adults simply aren't interested in technology.
They may have lived perfectly fulfilling lives without it and see no reason to change their habits. Or, they may feel that technology is just too complicated and not worth the effort.