I would just choose the government to run lotteries. Atleast you know who will be held responsible if things go wrong, and the profit of those lotteries will help to develop the country's economy. If private group will handle it then the profit will just go to their personal interests.
I also prefer for government run lottery because even if we keep on losing from this kind of gambling,we know that our losses might be very beneficial for those people who are badly needed some funds due to the calamities they have been experienced.Gambling may sounds negative to most of the people but when it comes to lottery,it brings positive effect to the mankind.
Main difference between a government and a private run lottery in terms of beneficiaries.For government i cant deny that they are more worthy to be played
yet we know on where these funds do end up which is for further development and assistance for those who in need.The only problem here is that these funds is being abused nor being corrupted thats why such decision on stopping it do happens.