When such incompetent person is possessed of a real or personal estate in excess of an amount more than sufficient to abundantly and amply support himself with all the necessaries and suitable comforts of life and has no minor children nor immediate family dependent upon him for support, education or maintenance, such advancements may be made out of such excess of the principal of his estate to such child or grandchild of age for the better promotion or advancement in life or in business of such child or grandchild: Provided, that the order for such advancement shall be approved by the resident or presiding judge of the district who shall find the facts in said order of approval. (1925, c. 136, s. 1; 1977, c. 725, s. 5; 1987, c. 550, s. 3.)