This has evolved a LOT since I first conceived of David and Barbara’s relationship as I developed my interpretation of him and will probably continue to do so, but I’m at a point where some things are pretty solid and explain a lot about Messenger’s way of interacting with others. I’ve mentioned some of this before, but here’s a mini masterpost that’s canon for both Prime and Mercenary Verse Messengers.
David was not a universally bad father
Messenger has an older brother 5 years her senior who remains in contact with and is somewhat close to their dad. He and David had a much different relationship that was kinda strained, but not for the same reasons. Daniel was relatively independent and easygoing as a kid, a bit of a troublemaker sometimes, but also the kind who preferred to figure stuff out on his own. It might have been different if David didn’t travel as much for work, but we’ll never know. Dave saw a little too much of himself in his son for their relationship to not be awkward, but he tried and was clear with praise and approval. Which wasn’t hard to give as Dan just kinda… did stuff. He wasn’t perfect, but he was a smart kid, got relatively good grades, was able to ask for help with college and finances and stuff so David felt like he was actual useful. Dan was just a mostly easy kid to interact with once they established common interests.
On the other hand.
Young Mess was just so cheerful and full of excitement and curiosity, along with being a much more physically affectionate and chatty child who looked up to and hung on to his every word that the two were actually extremely close for the first decade of her life. He taught both kids to fish, but Mess was the one much more interested in learning to hunt- despite being an animal lover. Dan outpaced David’s knowledge in an academic sense pretty quickly, but Barbara was more tactile and experiential so he could teach her stuff like how to break a man’s hand or what plants were edible in survival situations how to find water etc and stuff and she was always so JAZZED about this. Not that her mom didn’t also teach her about nature- they were a camping and hiking family-, but David taught her how to defuse a landmine so like.
Messenger is actually a good shot with a bow, which helped her later in life aim wise.
Again, if David hadn’t been away so often, maybe he would have seen and understood her challenges better. Maybe they could have stayed close, but issues started around when she was 10.