Universal Design at Home
Create a home that is accessible and comfortable for everyone, no matter their age, size, or ability level.
The standard doorframe is 28 to 30 inches, but just by slightly widening it (to 32 or 36 inches) you open up access for those with wheelchairs or walkers.
Also consider painting the trim around the doorframe in a high-contrast color. This will make it easier to be seen.