Because they are pretentious, self obsessed, pompus pricks, that's why.
Meilleurs voeux
Many people are unsure of what salutation to use in a letter. Unless you know the person well, it's best to use a formal salutation versus a casual one.
Our best wishes to you both.
"Best Regards".
best wishes
Most people say "Happy Easter!".
Best wishes
Best Wishes was created in 1989.
Yes, "Best Wishes" should be capitalized when used as a closing in a letter or email.
BEST WISHES for the BRIDE & CONGRATULATIONS for the GROOM...
very best regards
No, "best of wishes" is not a standard phrase in English. It is more common to say "best wishes" when expressing good intentions or blessings towards someone.