Agree for everyday life and the scenario given but an under-mattress stack-o-sats is a very important component to have in a collapse/tyranny scenario. Only kyc the sats you are prepared to cross a border WITHOUT. If you only want kyc-free for tax evasion, then yeah, the same rules apply as those to cash already.
To elaborate, the flip side of this is the point you are making well: you can't use your sats for anything big/useful unless they are tagged and bagged. Sats visible enough to use in a jurisdiction are subject to jurisdictional risk. My take away: you need both. Private and public. Hard to confiscate and even harder to confiscate.
Agreed, but we gain a greater advantage if we can get everyone to self custody.