Is 0.01 ideal enough?
You can't rely on your trading risk without considering the size of the account you are taking the risk on, which is the capital. In any standard trading settings, 0.01 lot size is the least risk you can take, yet, trading it on assets like Gold would eat your $300 with that lot size in just a day, in some cases. But many assets like Bitcoin and other FX currencies would accommodate it longer.
Therefore, calculate your risk based on: 1. Your capital, 2. Management you can afford (to set the lot size), and 3. The asset in question (volatility).
Whom ever that goes to trade cryptocurrencies should know that they are getting themselves engaged with a volatile assets.
Then should know that they must be prepared about the risk that is associated with digital currencies, and also accepts to use the money they can afford to lose while trading on any broker or exchanges.
You are right, and of course most have these three characteristics you made mentioned, before or can be able to follow up the market gradually and also know the lotsize to you.