Choose a useful drink spot for Grandma
Start with the person’s preferences and routine.
Ask which drink she uses
Check her actual cup or glass rather than buying around an assumed age-based preference.
Check seated reach
Place the table where she can use it comfortably without leaning around an armrest. Keep the route to stand clear.
Try the complete setup
Measure the base, check handle clearance and full seating, and allow room to grasp the drink itself.