Supply and mining problems are eliminated with token economy
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Demand and utilities are highly tied ones but most cryptos are being created for speculative purposes hence we cannot expect other being just another payment system. But, when it will be tied with any real world application then we can expect demand to increase over the time. Unfortunately, tokens are suppose to be acting like a stock of a company but that also being turned as speculative instrument.
Psychology has nothing to do with a coin when it does not have a attractive supply nor demand nor utilities. But, devs usually go for pumps and dumps to create those attractions which eventually lead to psychological consequences but artificial things cannot be held for long hence such coins may fail over the time.