Hello Gifty62
Disabled passengers do not get a reduction unless they are Swiss residents and have the appropriate medical health certificate signed by a PD.
For disabled adults you have to purchase regular adult tickets. For children you can purchase a Children Day Pass, or, if you stay multiple days, the Junior Card (available at the counter only).
You might want to shed a light on your travel plans so we can suggest the most budget friendly tickets?
Kind regards,
Roland