Yea scratch cards can be immediately spendable, but weekly lottos aren't. People wait, just as they wait for a volatile penny stock to spike in price. I really don't see enough of a difference between the profit potential of penny stocks, and that of lotto tickets, to assume they would be treated any differently by retail consumers, except for the long-term differences, that would make the former more beneficial to the consumer.

>>There's no change of making millions in a day, or week. The few "rags-to-riches" trading millionaires progressively amassed their money over at least a few years.

Crypto-assets have seen many thousands of percent gains in a matter of days. I don't know if you could turn $2 into a million in one week the way you can with a lotto, but the gains I think are substantial enough to compete for lotto spending, especially considering that odds of gains can be improved by the buyer through research and analysis.