Is pedophile Josh Duggar's history of incest the reason Jana Duggar stays single?

Reality TV fans would love to see "19 Kids and Counting" Jana Duggar dating. They also have Cupid's arrow aimed at John-David Duggar. Jill Dillard, Jessa Seewald, Jinger Vuolo and Joy-Anna Duggar Forsyth are married and Joseph Duggar is courting. Yet the elder siblings remain single. Jana says she's waiting on God to send a man. But could it be that the twins are afraid of relationships? Did brother Josh Duggar ruin it for them with his pedophilia and incest?   Josh Duggar, incest, pedophilia keep '19 Kids and Counting' Jana Duggar single?