I've helped lots of people set up a trust -in these cases per laws related to disability finances.
A few items from this experience (which may or may not apply to other scenarios, I don't know):
1. A trust is considered its own legal entity -the contents no longer "belong to" the individual.
2. As such, they are somewhat protected from lawsuits on a person.
3. If one is moving money into a trust only to avoid paying on legitimate claims, it may not be protected.
4. As a distinct legal entity, a trust requires its own tax return.
5. Their contents are taxed differently than other entities are.
Paying a lawyer to set one up, paying an accountant to do a special tax return every year, and higher taxation may bring more cost than benefit.
Different types of trusts, and each region of the world (or even within a country), may have different rules, so you'd need to figure out the intention of a trust, then look at what's involved in setting one up and maintaining one of that type in that region.
I'm not a lawyer, tax accountant, etc. In each case I've worked on, we did use each of these. I've felt the details were too complex for me and the other lay people involved to ensure they were done correctly.