It is just an excuse that these people give themselves so they do not invest in bitcoins. Although there are many wrong and contrary information regarding bitcoins, there is still the correct information about it if only these people will make the extra effort to try and check online for it.

Don't waste too much time trying to convince anybody that is proving too difficult to convince about bitcoins, leave them to their own opinions and focus on gathering more bitcoins so that later on in the future they will see the results of the decision that they refused to take.