We voluntarily did DNA tests on both of us to rule out any parental defects, as well as tests in utero to see if there were issues. Luckily there were none, but we had some discussions on what we might do. It seems reasonable and responsible to perform these tests to be informed on your major life choices.
I think insurance paid for the tests in fact. We had the doctors collect stem cells from the umbilical cord and they're stored at some place. That was like $1000 each kid, and $100 a year to keep. But after like 10 years you get some money back if you don't use them and they get "donated" to someone or to research.
