Yes, etiquette is hypocritical. Yes, it does inhibit children - if you're lucky. But the idea that it's elitist and irrelevant is like saying language is elitist and irrelevant.
Judith MartinShe only maintains that it is possible, under some circumstances, for a lady to murder her husband; but that a woman who wears ankle-strap shoes and smokes on the street corner, though she may be a joy to all who know her and have devoted her life to charity, could never qualify as a lady.
Judith MartinThe challenge of manners is not so much to be nice to someone whose favor and/or person you covet (although more people need to be reminded of that necessity than one would suppose) as to be exposed to the bad manners of others without imitating them.
Judith Martin