Non-Contentious Probate Rules

Where one of 2 or more executors is a person under the age of 21 years, probate
                may be granted to the other executor or executors not under the age of 21 years nor
                under disability, with power reserved of making the like grant to the first
                mentioned executor on his attaining the age of 21 years, and administration for the
                use and benefit of the first mentioned executor until he attains the age of 21 years
                may be granted under
rule 31
if and only if the executors who are not
                under the age of 21 years nor under disability renounce, or, on being cited to
                accept or refuse a grant, fail to make an effective application therefor.