The thread title seems to go against the content of the thread because keeping Bitcoin will make it underutilized. I agree with the start accepting Bitcoin, because that will help it circulate, change from one hand to another hand but keeping it will just make it idle in our wallets making it underutilized.
I disagree, currencies are not only meant to circulate and to be used as a way to exchange goods and services among people, another characteristic of currencies is that you should be able to store it and it should keep most of its value regardless of how much time passes, this is why people love to hold gold because it is a great store of value and any currency that wants to pass the test of time needs to have that characteristic and fortunately for us bitcoin does.