Yes, Gambling is mainly for the rich and lucky mind because  prediction is all about luck and predicting without funds betting  can not  strive, actually gambling  is for the rich in gambling  staking power matters, in gambling one needs to work hard so he or she can financially  strong.

Gambling leads  to richness most of the because you stake with  low funds and gain huge funds.

So to my own opinion gambling are mainly  for the  rich and luck mind.