Without a will, your family may need to navigate a legal succession certificate process to access your bank accounts, property, and investments — a process that can take months and sometimes longer if there's any disagreement among legal heirs, even if everyone actually agrees on how things should be divided. A clear, valid will largely avoids this, since it explicitly states your wishes and simplifies the legal transfer process considerably.
Writing a basic will doesn't require extensive wealth or complexity — it can be a straightforward document, ideally handwritten or typed, dated, signed, and witnessed by two people who aren't beneficiaries, listing your assets and how you'd like them distributed. While registration isn't strictly mandatory for a will to be legally valid, registering it adds an extra layer of authenticity that can reduce the chance of disputes later.
If you have any assets at all — a bank account, insurance policy, property, or investments — and any preference about who should receive them, a simple will removes ambiguity for your family during an already difficult time, regardless of how large or modest your estate actually is.