We live in a BYOD world. They probably mix work on business and personal machines.
This is true for phones, where it wasn't before.
But for computers? The only company I've worked for where I brought my own computer had a total of three employees.
One particularly fun outbrief included the head of their desktop support org talking about how much better their satisfaction scores were with the users when they were allowed to use laptops they had personally chosen. Chose metrics that align with your goals or reap the outcomes.
And this wasn't some little three people shop. This was Oracle.