Previously banned sun umbrellas and loungers were also now encouraged at games.
"We are hellbent on trying to re-invigorate the crowd," Mr Roach said. "Feedback on the whole has been positive. There are some people connecting alcohol to bad things. We are not saying it's like that. The real benefit of getting people to watch live sport is evident in that most people get their first taste for sport when they see it live. We are talking about future generations of sport."
Mr Roach said the association would still provide a safe, family environment and "nothing that we are saying will change that".
"We've always had alcohol at our cricket games at the Mount. The only difference is that it's BYO. Our host responsibility does not change.
"We'll still have large family areas and an area where if people want to have a drink, they can," he said.
"If it's not working after the first game, we will quickly alert people. We are adults."
Don Paterson who manages TRAC events said if the right kind of security measures were in place "there's nothing wrong with it".
"So long as it's done properly, it works really well," Mr Paterson said. "Long gone are the days where people get trashed at public events anymore, especially with the lower drink drive limits."