Blackjack at 17% or higher house advantage?????

That would put it over 3x worse than roulette. Even fun 21 that pays even money or the bad 6:5 BJ payout doesn't come close to that.

The DD games I target start with about .57% house advantage. I bet more as soon as I have a .5% advantage or higher but not going to go into card counting on here and how to apply a bet spread without getting thrown out. If you are not greedy you can play with a little advantage overall. That has been my expertise for 39 years and not poker. Only got into poker about 15 years ago playing in casinos.