1. Okey, we will adapt.

2. Who decides when coins are lost? What if I left coins for my grandchildren in a hundred years? No possible answer, all coins must be valid.

Also 2. Let them have it. If you did the proof of work to develop a quantum computer, you earned the corn.

I definitely support building a quantum resistant strategy, so it can be tested and improved over the next 20 years till it's needed