Only some gamblers can use gambling as a regular job, while the rest will fail in the middle of their journey. It is hard to use betting as a job because that needs more knowledge than regular people who bet. If you can get paid by playing poker tournaments, then you do not risk anything since you only need to use your skills, no matter what the result is in the end. But everything related to gambling will have a risk. Whether that risk is big or small, you will still get that risk. The only thing that makes it different is how good you can manage the risk.
How can you manage your risk if you play by the rules that are set by bookmakers or casinos (in the case of gambling)? You can reduce your risks to a certain percentage but still the risk will be enough for you to lose your money as it is assumed in the betting (gambling) system.
Even it would be having 1% chance of losing then it would be consider as risks but we know that once we do step our foot on gambling or betting then these things would really be typical for you to experience on
and people should really be aware of that and not just minding about those risk free bets which it doesnt really exist or no matter on how sure you are when it comes into your dealings
with things. This is why its called betting because you are something needs to choose in between options which losing is always been a probability.