They just gave us an option for BYOD (bring your own device) in my company and I would love a dual sim phone. I had one sim for my personal line and one for my work line. And just one phone. Very convenient. But not an option for us here in the US.
The answer to 90% of every question asked.....money.
If there is money to be made doing this, we will see it.....eventually.
None of these decisions are made based on whether we want it.