Disputes within family-run businesses — over succession, unequal contribution, management control, or division of assets on a family split — carry a dimension ordinary commercial disputes do not: the parties usually have to keep dealing with each other, personally and professionally, after the dispute resolves.
Arbitration, and particularly mediation-arbitration hybrids, suit these disputes well because they keep sensitive family and financial information out of the public record and allow for a more flexible, less adversarial process than court litigation, which can otherwise permanently damage family relationships regardless of who "wins."
Family settlement agreements and family constitutions increasingly build in a mediation-first, arbitration-fallback structure for exactly this reason — preserving the relationship where possible, while still guaranteeing a binding resolution if informal negotiation fails.