Trusts are all about controlled asset protection and distribution. They are useful tools in keeping assets away from creditors, reducing a taxable estate, providing restrictive spending for young adults and can even be useful in the event of a divorce.
With divorce rates as high as they are today, protecting assets doesn't seem like such a bad idea. One way to do complete this goal is through a prenup, but a lot of couples or individual spouses are reluctant to utilize that tool. A trust is often a way for couples to get around this apprehension.