in my opinion trading is way safer if you actually take the time to study and understand the market. gambling is pure luck and the house always has the edge. with bitcoin trading at least you own an asset that can grow over time while in a bet if you lose you are left with nothing. the key is just not trading based on pure emotion.
The level of safety will depend on you. If you take the time to research and learn to improve your knowledge, trading will be safer. But if you trade based on emotions, the risk is no different than gambling
Additionally, if you trade on the spot market, you own bitcoin. But that does not guarantee you will make a profit if you consistently buy high and sell low. Not to mention, if you trade future, you do not actually own any asset
In general, trading and gambling are two different concepts, but both involve risk, and that risk depends on how we manage capital, control emotions...Do not blame them if we suffer losses.