@drizzy @Rush that's a tricky one. What are the possible options? Here's some ideas

1) Force no OS, have customers install it themselves -> not consumer friendly, increases barrier to technology
2) Force free choice and have vendor install upon purchase -> makes warranty and returns difficult
3) Require option of purchasing without OS -> this one seems possible, depending on demand how retailers handle it no OS might be more expensive though? What is apple going to do with proprietary chips?