Ace-to-Five Triple Draw Lowball (A-5) is a relatively straightforward poker variant; the best hand is A-2-3-4-5 and neither straights nor flushes count against you.
In 2-7, marginal one-card draws, particularly those that can make straights, are more incentivized to turn their hand into a bluff. Whereas in A-5, since straights don't ruin your hand, players with holdings such as 3-4-5-7 are often content to simply draw and hope to make a hand that can win at showdown.
Suppose that after two players drew one on the second draw, the first player's turn lead with 7-5-4-3-2 gets raised. Against a common value range of made sixes or better, breaking this hand and drawing to 2-3-4-5 doesn't make much sense. Making the worst six (6-5-4-3-2) usually won't help, and only one of the remaining aces (that may be in very short supply) will save the day. Versus an aggressive opponent the best play is usually to stand pat and hope that your opponent is making a move, even though that is rarer in A-5. Folding to the raise can even be considered against a tight straight-forward player.
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