There is literally no place to tack on a middleman with nano/btc. Yes it will take some rethinking of how we combat what society conceives as improper use of funds.
BTC is just a widely distributed set of middlemen imposing delays and costs (both mining rewards and transaction fees are costs to everyone holding or using BTC that run from holders/users to miners.)
At some point I will exchange to USD to pay whatever I owe in taxes and to pay any vendor that does not take crypto. I imagine if I were an unscrupulous actor I would skip the tax step and avoid vendors that don't accept crypto.