Liz and Charles Ritchie attacked gambling companies and the government following the conclusion of an inquest into their 24-year-old son Jack Ritchie’s death in Vietnam, in November 2017.
In a narrative conclusion, Mr Urpeth said that information about the dangers of gambling was available at the time of Jack’s death, as was some treatment.
But he said: “Such warnings, information and treatment were woefully inadequate and failed to meet Jack’s needs.”
Mr Urpeth told the hearing: “Sadly, this addiction spiralled out of control and led to his suicide.”
The coroner concluded that “gambling contributed to Jack’s death”.
Speaking on the steps of Sheffield Town Hall, where the inquest was held, Mrs Ritchie said: “Jack was abused by parasites who inflict life-threatening illness for profit and then blame the victims, making them feel that everything is their fault and that they are better off dead.
“As his family we know that Jack was not the problem and in our grief we are also victims of predatory companies and a collusive government.”
Her husband said: “The coroner heard clearly that gambling kills and he concluded that multiple state failings contributed to Jack’s death.
“Gambling was the root and trigger of Jack’s death. The coroner heard that ‘it took hold of a happy healthy 17-year-old child and killed him’.
“The government tried to blame his death on other factors – but there was none.”
Mr Ritchie said: “The government accepted that our frontline NHS staff – our GPs, our nurses – had no training to be able to recognise, diagnose or treat gambling disorders.
“It must now be clear we need a statutory levy for the NHS to remove any gambling industry influence over information and treatment.”
Earlier, the coroner praised Mr and Mrs Ritchie for how they had “channelled their terrible loss into a tireless battle” for reform through the charity they set up, Gambling With Lives.
The couple believe the hearing was the first so-called Article 2 inquest in a case relating to suicide following gambling.
This means its scope included an examination of whether any arm of the state breached its duty to protect their son’s right to life.
The inquest heard how Jack was teaching English in Hanoi when he died after years of battling a gambling disorder which started when he began using fixed odds betting terminals aged 16 or 17.
The coroner said he will be writing to a number of government departments with warnings about how future deaths can be prevented and particularly highlighted the need for more training for GPs about gambling disorders.
Mr Urpeth told the hearing that the “evidence showed there were still significant gaps” in provision for gambling disorders and warnings about the dangers of gambling.
He said: “Jack did not understand that being addicted to gambling was not his fault.
“That lack of understanding led to feelings of shame and hopelessness which, in time, led to him feeling suicidal.”
Following the inquest, a Gambling Commission spokesman said: “Jack’s death was a tragedy and we have met and spoken with Jack’s parents on several occasions to understand and agree how we can learn from their experience to inform the way we work.
“These conversations, along with those of others who have experienced harm, strengthens our commitment to protect consumers and make Britain’s gambling market fairer and safer.”