[astrodust]

QR codes are annoying to use even on phones that support them. Get a short URL and forget QR codes.

Typing proving to be too much? How about working on better OCR?

[edent]

Homographic disambiguation. It's hard for even the best AI to tell the difference between 1lI!| etc.

[astrodust]

If the AI has a hard time differentiating, I'm sure your human users will have as much of a challenge.

Pro tip: Don't register A1lI.com and expect people to be able to type it in.

The amount of time it takes to make an OCR-friendly URL on a product is zero.