I agree with what you have said but I believe they can learn though because there isn't anything that can't be learnt and Bitcoin isn't something that anybody should be staying away from because of the potential that it holds. Investing in Bitcoin is never going to be a bad mistake but the way we handle our investment is when it can be a bad investment as we don't consider the possibility of the future before making a decision to sell the Bitcoin that we're hodling. This people that you're talking about only need few guidance and they're going to become good Bitcoin hodlers. For people that are bad at hodling, they don't have to invest more than the can handle and it'll help reduces the anxiety of hodling during the stormy times. This applies to every other investors too