Right, it's not difficult if all you want to do is buy BTC or ETH and then sell it later at some point. Gemini is probably the best option for that. Bitfinex of

Right, it's not difficult if all you want to do is buy BTC or ETH and then sell it later at some point. Gemini is probably the best option for that. Bitfinex offered KYC/AML for US citizens that wished to interface with fiat (USD), but had trouble maintaining their relations with US banks. But if you want to do much more than that, things get pretty difficult if you're trying to be 100% compliant with known regulations and laws. Especially if you are crazy enough to consider the way things are supposed to be taxed when dealing with many cryptocurrencies, tokens, microtransactions, chain splits, air drops, and many other unconventional new mechanisms.