Food is a means of including and excluding people. The most inclusive groups of people tend to have the most liberal tastes in food. Everyone is welcome at the table, and you are welcome to serve any food you like.
Jewish Rabbis in middle age Europe fought a constant battle to hold the faithful in their religion. Young people who fraternised with Christians were at risk of marrying out. So the Rabbis reinforced observance of the kosher laws to keep their congregations intact. If you cannot eat with people, you do not keep company with them.
The Spanish inquisition saw this also. When ex-Jews converted to Catholicism the church in Spain monitored their food consumption. If they did not roast a leg of pork from time to time they risked being accused of back-sliding.
So you can be included, or excluded from a “tribe” by the food you eat. Kosher, Halal, Vegetarian, Vegan, Fruitarian, Pescatarian, South-Beach, Atkins, Weightwatchers.
In societies with “untouchable” castes, there are strict rules guiding who sits at what table. In societies where food is eaten with the right hand, as in many Arabic countries, if a thief has his right hand removed, it is a far more dreadful punishment than the loss of the limb. He is now excluded from dining with other people. He must eat alone. He is banished from the table.
An invitation to the table is an inclusion in society. In the middle ages in Europe you could tell the status of a person by where they sat in the Lords hall, what foods they were permitted to eat, what cloth they were permitted to wear, in which colours, right down to what type of bird they could hunt with.
It was considered a great sin and shame to breach the laws of hospitality. A guest under your roof must be fed. The poor regularly appeared at the homes of the wealthy to beg alms from a feast, relying on the shame factor of the host if they were sent away hungry.
Stories abounded of mean minded hosts or their stewards, who would refuse to feed the poor, or charge them a fee for the table leftovers.
In one story from Middle Age Ireland a man starved himself to death on the doorstep of his enemy, to condemn his enemy to a lifetime of shame for permitting a guest to die on his threshold.
It is very important, to have a place in society, to eat with others. In modern western society a lot of old people end up living on their own. Volunteers give their time and effort to deliver Meals on Wheels to these people. But it would be better to deliver the person to the meal, than the meal to the person.
Dinner Guest: Me by Langston Hughes
I know I am
The Negro Problem
Being wined and dined,
Answering the usual questions
That come to white mind
Which seeks demurely
To Probe in polite way
The why and wherewithal
Of darkness U.S.A.–
Wondering how things got this way
In current democratic night,
Over fraises du bois,
“I’m so ashamed of being white.”
The lobster is delicious,
The wine divine,
And center of attention
At the damask table, mine.
To be a Problem on
Park Avenue at eight
Is not so bad.
Solutions to the Problem,
Of course, wait.