People are willing to work for things that are worth it. Most people take time to learn new skills. The important piece is that it needs to be worth the effort.
I switched to a split keyboard with a different layout because I was suffering from an RSI. It was worth me to take the time to relearn something I had done for decades to be able to continue typing. Most people don’t need to and get no benefit, so they don’t.
Apple just needs to make a product that provides enough value that people are willing to deal with the initial hump of discomfort.