The Mirrorball Man wrote:
In a world without poverty or mental illness, I don't think that transporter technology would be too problematic.
Who says there is no mental illness in the Star Trek universe, it seems like there are many examples of mental illness in Star Trek. Not to mention there is no evidence the Federation is free of psychopaths and people with personality disorders.
The Federation only did away with economic crimes because of their post scarcity economy, there is no evidence they managed to do away with crime of passion, sex crimes or the impulsive crimes of people with personality disorders.
Having potential psychopaths, serial killers and rapists beam into your house whenever they want seems like a scary prospect.