[iexplainbtc]

You can't go to a bank, ask them to give you all your money in cash and hide it under a mattress (not in most countries at least).

You can go to Coinbase and simply transfer all your funds to your own wallet in a matter of seconds.

[lottin]

I didn't know that in most countries it is forbidden to hide money under a mattress. This is news to me.

[iexplainbtc]

What I meant is that it's not a hassle free process. You'll be reported to the IRS (or equivalent) and even be asked to bring an "approved intermediary" in some EU countries. I wish I was making this up.