The phrase "allowed to greet" is correct and usable in written English.
You can use it when discussing permissions or social norms regarding greetings in various contexts.
Example: "In this formal setting, guests are only allowed to greet the host after the ceremony begins."
Alternatives: "permitted to greet" or "authorized to greet".
The Chinese New Year was ushered in with a bang yesterday -- actually, some 197,600 bangs -- as Chinatown residents, for the first time in seven years, were allowed to greet the new year with the traditional holiday staple of firecrackers.
Once bathed and decked out in "company" pajamas, I was allowed to greet the guests and then remain in the living room for about fifteen minutes before being trundled off to bed.
For example, there was a time when Saddam's subordinates were allowed to greet him with the standard two kisses on the cheeks, but he's grown so wary of bacteria that he demands to be greeted with two tender pecks on either sides of his chest, close to the armpits.
Left-handers are not allowed to greet people with left-handed handshakes, or to refer to the correct answer as the left answer.
Security forces whisked away Musharraf in a convoy of about a dozen vehicles shortly after he touched down in the southern port city of Karachi and did not allow him to greet hundreds of supporters waiting at the airport, ready to shower him with rose petals.
They also allow hosts to greet each guest by their name, which goes a long way in developing relationships.
Meanwhile, no one is allowed to cry – people just cordially greet each other by saying "Christ is risen", and offer vodka and traditional dishes around.
Aung San Suu Kyi is allowed to leave her house to greet monks demonstrating in Rangoon.
The steamer was interned by the U.S. and her Canadian-bound passengers 18 cabin-, and 305 steerage-class who were not allowed to remain in the United States were greeted by the Canadian Commissioner of Immigration who was stationed at Boston.
There was no shortage of excitement around the tee box as the players assembled for the opening match, enthusiastic chants welcoming the home team while the visitors were greeted politely and allowed to drive off in a considerate hush.
(Sorensen wanted to know whether a Jewish visitor to Libya would be greeted as respectfully and allowed to speak as openly as Qadaffi was here; Qaddaffi said that he was "really surprised that such a question is raised").
