Rep. Kenneth Sumsion wants adoptees and birth parents to be able to make contact when the adoptee is 30. They already can. Utah has a Voluntary Adoption Registry in which birth parents and adoptees can register. Raising awareness of this service seems a better way to handle the situation than Sumsion's bill.
Instead of a voluntary system, Sumsion wants the government to force contact on biological parents. It may not be the adoptee ringing the bell, but it will be a court-appointed official suddenly appearing on the doorstep 30 years later (in this version. There's nothing to prevent later legislatures from lowering the age.) Some parents may be delighted, but some will be horrified. What if a birth father did not tell his friends or family about his decision at the time? What if a birth mother has not disclosed it to her present boyfriend or husband? Those decisions are intensely personal, and the government has no business interfering.
The rep is supposed to make "discreet" contact, but we cannot think of any way to contact a birth parent that does not pose some risk. It may be someone overhearing a conversation, or it might be forcing the parent to hide something important from loved ones.
One former adoption lawyer opines that this law would lead some birth mothers to choose abortion instead of adoption. He feels that some women, when told that a child would have the right to seek contact with her later in life, will choose abortion instead. We don't know if it's true. But if that is a possibility, why risk it?
In sum: This bill seems unnecessary, invasive, and risky. That probably means it will pass.