I did wonder!
I’ve know a lot of people who gamble way too much so I try avoid it as much as possible as I take everything too far. Some of them go to the casino quite a few times a month and will laugh off losing another 4 figure sum, which is inconceivable to me.
I’m like you that if I was at the races I’d probably put a bit on most races. Also do football accumulators now and again.