Yes. They are somewhat tame vices by our standards. But nonetheless, the card-sharpers sound to have been fairly dangerous, to the wallet at least. Still, each to his/her own era. My own sketchy knowledge of this subject extends to booze (at any time), cocaine in the 20s forward (not personal experience you understand) .... and that's about it. Best ask Bob Godfrey - he seems to know a bit about historical vices, from diligent secondary research.