Yes, there's possibility that one can be very lucky and have a huge win which they can just use the money for a very important stuff after winning but I guess that such luck is rare. For example, I have a game that I staked on last week Sunday, it's an accumulation of 40 matches which gave me about 1.5k odds and I used $1 to stake on that game which gave a potential win of $65k. About 9 games have already played as predicted and the rest of the 31 games will happen in the coming week. If luck runs perfectly and all that game go as predicted, then I will win a huge amount but it's rare for such luck to happen.
It's true what you said, of course someone who can get a big win in gambling is very rare, even I sometimes see many videos circulating with those who always get big wins, I always think that it's a fake win, even though whether it's true or not I don't care because there's no benefit for me either even though the person who got the win gave a pattern or trick but I doubt it can make me get the same win.
If luck is on my side, I think just by betting once we can get a big win, but because luck is rarely on our side, it's very rare for a big win to happen. Besides that, I think gambling is not a shortcut to poverty, but our own actions lead us to poverty or bankruptcy.
You are right with most parts of your comment, specially with what you said in the end, which is that, our own actions lead us to poverty and bankruptcy, I love this statement to be honest, because in the end of the day, there are people who gamble, return home and continue their normal life, and may never return to gamble again until further notices, usually several weeks later. While there are other people who almost sleep and wake up in a casino house each and everyday - our actions indeed is what either lead us to becoming rich, becoming poor and rekt for life..
And let me also use this opportunity to let you know that it's actually possible to win huge from gambling, I would be doubting like you if I have not witness3d or seen someone who won over $100,000 from a lottery here in my country.
Winning good amount of money is very possible in gambling, but then, it solely depends on individual luck, and it's also possible that there are many who may likely gamble for several years and never win any amount of money that is significant.