Trusts are private agreements between the person who makes it (the grantor) and the person who will act (trustee) on behalf of the person(s) who will benefit (beneficiaries). The terms of a trust are not a matter of public record. This is different than a will, which is public. If you want to be specific about what sort of care, what schools, at what ages do children receive what amounts, you may want to keep that private.
A trust also provides for disability and death of the original Trustee (often the grantor) with a list of Successor Trustees. The Successor Trustee can step in and start acting for the benefit of the beneficiaries with a small amount of administration. This is different than going through probate. While NJ is not a difficult state in which to go through probate, there are still timeframes within which you must work (e.g., waiting a certain number of days before starting the probate, waiting a certain number of days for the death certificate, waiting a period of time for creditors’ claims to come in).
If you want part of your Legacy to be that you made things easy for your family – so much so that they feel your love, they feel cared for by the care you put into your plan, then you may want to consider trust planning.