Nearly every online sports betting company that gave the Gaming Commission its opinion during a roundtable Thursday said it would be OK with in-person sports betting starting before mobile or online wagering with one glaring exception: Boston-based DraftKings, which said it would rather see all operators go live on the same date.

The Gaming Commission has said it wants to implement legal sports betting here without unnecessary delay but also without sacrificing its commitment to consumer protection and gaming integrity. But in the six weeks since Gov. Charlie Baker signed the state’s betting law and as eager bettors clamor for action, regulators have run into some significant hurdles that could complicate their efforts.