The death of a parent is tough, whether it's sudden or a long time coming. The advantage of a slower death is that there may have been more time to prepare, however human nature being what is, often people don't use that time well. Of course, a sudden death can throw everyone back by the very nature of the shock. Either way, unless there is a solid reason to do otherwise, it's generally unwise to make changes too quickly, if they can't easily be undone.
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