Bertrand Russell Quotes
When the young attempt to regulate the lives of the old, as, for example, by objecting to the remarriage of a widowed parent, they are quite as much in the wrong as are the old who attempt to regulate the lives of the young. Old and young alike, as soon as years of discretion have been reached, have a right to their own choices, and if necessary to their own mistakes.
Source: Bertrand Russell: The Conquest of Happiness, 1930, chap.9:Fear of public opinion.
More info.: https://russell-j.com/beginner/HA19-050.HTM#google_vignette

* a brief comment:
As Russell says, everyone has the "right to make mistakes" and the "right to make their own choices." If someone does what they want and fails, it is their own responsibility. However, trying to restrict their actions under the pretext of "giving advice for their own good" just because they might fail is nothing but unwarranted interference.
Of course, this applies as long as they do not cause significant trouble to others, such as family members or those involved.
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