Yes, gambling is always considered negative by everyone because it can harm yourself .. because gambling will make people lose consciousness because it can be addicted and can fall poor if continue to play gambling .. and when playing can trigger the lust without control and it is very self-harmful ..
This is because we have had so many people without the basic rudiments of a gambler trooping into gambling on a daily basis with the sole aim of making profits and these guys fall victim a lot of times to elementary mistakes which they should have learnt before they came gambling but because money is the prime focus they don't lean anything and they just go from impulsive gambler to addictive gambler in no time.