It's Margot Sanger-Katz, a reporter from the Concord Monitor in New Hampshire...
Chicks with hyphenated last names are stupid.

Its meant for marriage reasons. When formally adopted you're to make a choice, and I guess the hyphenation is one of the choices, but it's probably the lesser of the three.. meaning old, new or hyphenated. I'm guessing you did it as an acquiescence to Horhay and mom - if you had a choice at all. Often, parents will have a mentality like "what will the neighbors think?" it's kinda meant for show. If I was in a mixed marriage situation and the kid had any qualms I wouldn't insist, the kids identity and emotional connections with the past is more important than my opinions. Any legal reasons are bullshit, insurance doesn't care as long as you can show legal custody.
Just sayin. I'm speaking from the POV of a dad. If I expired and my X pulled shenanigans like that on my kids I'd be pissed - and the little Braskys would be, too. Its their choice, nobody elses.
Luckily, my opinions on legality and government and morals have been slowly absorbed into her thick skull, at a glacial pace, but still absorbed nonetheless. I would rule from whatever dimension I inhabit, with softball-sized hail and lightning to punctuate my displeasure. Nests of vipers. Reality becomes blurry in my presence. Theres no doubt I would muster the force to reach through the thin ethereal and choke a bitch on occasion.