About a dozen years ago we tested 'airless' tires for a company on our tandem. On a very smooth road, they were fine. Any bumps and you lost the 'boyancy' that an aired up tire provides. Lots of road vibration!
Crossing a cattle guard (we live in the wild west) it felt like an earthquake!
Not a good idea!
Like learning to play the piano/organ, changing a flat takes 'practice!' So in your garage, take off wheel(s) on your bike and practice removing/installing a tire/tube. Not that difficult after a few attempts!
Good luck!
Pedal on TWOgether!
Rudy and Kay/zonatandem