The sites you mentioned are good enough so far and they are known in the forum as reputable casinos. However, you may not directly advise anyone to use any Site. So op can recharge himself with ideas from here and then decide which one will be perfect for him.I personally use stake.com the most because I have been gambling here for a long time which makes it user friendly for me.
I don't think it is a good way to give advice directly to someone, always suggest with and the rest should be explored and used by the user. But the casinos he suggests are not bad for gambling. And yes gambling is very risky because you can become winner at once at the maintain you can lost your whole fund at once. But gambling with the responsibilities and with the own limitation can be make the gambling little safe.
You guys are right about directly advising people to use casinos but the user never makes direct advice for people who gamble.
Gambling is already very risky so it is always better to advise everyone to stay away from it.
Life with no risk is no existence and it's either you get busy while you make more bucks or choose the easy way.
Gambling is not everyone right from the beginning and it's only meant for people who can control their buzz and also understand the true concept of gambling