Pianists touch the keyboard, touch the music to turn the page, touch the pedals, etc. So the sense of touch isn't surprising. But I have a couple ideas on making it more helpful.
When your young musician gets frustrated on a new song, concentrate on the sense of touch. Move away from the piano to the kitchen table or counter. Have the student pat the song, using left hand to pat the left hand rhythm and the right hand to pat the right hand rhythm; separately and then together. Focus the attention on what the hands will do (not individual fingers yet) and how they work together. Once the student feels confident in working the hands correctly then move back to the piano and begin playing at a slower tempo to integrate the individual fingers.
Sometimes this approach gives the confidence to move forward!