Fathers often walk into a custody case expecting the deck to be stacked. Hawaii law does not work that way. The Family Court decides custody on one standard, the best interests of the child, and nothing in that standard favors mothers. What the statute actually looks at is caregiving history, stability, safety, and each parent's willingness to support the child's relationship with the other parent.
What is true is that rights have to be asserted. A father who waits, or who relies on an informal arrangement, often finds the status quo has hardened against him by the time anyone files.
For unmarried fathers, paternity is the threshold question. Until parentage is legally established, a father has no enforceable right to custody or visitation, however involved he has been. Paternity can be established voluntarily or through a court action, and it cuts both ways: it creates the right to parent and the obligation to support.
That last point carries more weight than fathers expect. A parent who undermines the other parent's relationship with the child damages their own position.
Show up. Keep a record of the time you spend and the costs you cover. Communicate in writing, and write every message as though a judge will read it, because one might. Pay support even when the schedule is not what you want, because unpaid support becomes the first thing raised against you. And do not withhold the child to force an issue.
On an island, a proposed move carries more weight than it would on the mainland. An off-island relocation can effectively end a shared schedule, and it is one of the few issues worth moving quickly on.
The first step is a free 15 minute call, held by Zoom or phone, where you will get straight answers about your situation and your options.