Complex sentence: Most well drafted irrevocable trusts contain spendthrift provisions even though the beneficiaries are not known spendthrifts since the provision protects the trust and the beneficiary in the event a beneficiary is sued and a judgment creditor attempts to attach the beneficiary's interest in the trust.
Split into simpler sentences: Most well drafted irrevocable trusts contain spendthrift provisions even though the beneficiaries are not known to be spendthrifts. This is because such a provision protects the trust and the beneficiary in the event a beneficiary is sued and a judgment creditor attempts to attach the beneficiary's interest in the trust.