Fair point, tbh though I don't think there's so much legal red-tape which could prevent, say Estonia's CB to put Bitcoin on their balance sheet, but happy to be enlightened here.
More broadly I think I think BTC as a CB asset will start in those smaller countries with weak currency which can't defend a peg with the USD, they might as well have BTC which they can exchange 24/7 for USD and pay for trade, much less hassle than defending a peg imo (though custody risks are real here)
what do you think 
RE: 🎃 Crypto Market Rollup - Bitcoin Up over 90% YtD, Thoughts on Central Bank Accumulation.