One problem can't solve from first, if new investor can't trust new fresh coin why they don't invest in old coin. We several good coin already exists in cryptocurrency even with very low price. Even I don't think there could be a trust problem. All solution is now is the correction time!!
It is their experience in the past why investors avoid investing on new coins. Aside from that, who knows they had already invested on this old coins and already suffered a huge loss on their investment. There is always a trust problem and if you a person trust easily, I think there is a problem on how he looks on things because he will be susceptible to scams.