A revocable trust isn’t better or worse than an irrevocable trust, but it is very different. If you need access to your trust-bound assets, or want to be able to make changes to your trust during your lifetime, a revocable trust is the only solution. However, if you don’t need those assets and are hoping to preserve them for future generations, irrevocable trusts can shield them from a lot of different problems, including lawsuits and estate taxes.