Why don’t the Light Rail ticket vending machines have big signs saying TAP TO PAY works too?

I’m constantly seeing these huge lines of tourists(?) at SeaTac… or first time riders at Lynnwood or Husky Stadium… all waiting in line to buy Light Rail tickets / Orca Cards.

Here’s the SeaTac vending machine:
https://imgur.com/a/q5ln1XF

90% of these people probably have a phone and/or credit card in their pocket that they can tap, skipping the line and reducing congestion in the station.

Why not put a big sticker up high that says “OR JUST TAP YOUR PHONE!!!”*

This is a new development in the last 6 months, but the signage / directions seemingly haven’t been updated to reflect the new technology. Get people tapping and moving.