Hi,
I ve read that some e-wallets restrict your account and ask for ID docs to unblock access to your funds  (coinbase).

So, some people  say that they don't leave their btc in wallets for long time, as soon they get BTC funds they exchange for FIATS and this is more secure.
I do not know much about fiats and all.

Can you  point to a good tutorial or guide on how to do that? or share some lights to  use BTC to keep they safe or a good site to exchange them for USD , like using  Paypal as conversor?

Or any secure e-wallet  that dont's ask for ID proof?

Thank you