People need some frame of reference to live.
More the references better for the Society.
I am using the term Reference, not laws, for reference is more by way of recommendation in nature while Law implies punishment .
The reference points may include any or all of the following criteria.
Day to-day activities of Life like brushing the teeth bathing,eating, sleeping, working, marriage, parenting and Death.
and a combination of all the above.
In the absence of any frame of reference, the individual is rudderless and has a crisis of identity.
You take away the identity of Nation from an individual, he becomes an immigrant , not knowing where he belongs to for he is an alien to bot the countries.
Similarly if you peel of all references to a group, you have an Identity crisis.
People without strong bonding with communities become recluses, start hanging out in Facebook,Google Plus hangouts with people of whom they know nothing, except what they inform you of what you would like to hear.
The chances of building a strong personal community bonding are slim.
In most of these artificially created communities,driven mostly by curiosity and a desire to share things which they can not share with whom they know.
And herein lies the danger.
Mostly people misuse it and exploit your weaknesses.
Hinduism had tried, organizing groups under the principles mentioned above.
They found that Money as the reference point is not stable as the yard stick of Money changes and money is not a permanent fixture with any one as fortune changes.
You can observe how money as reference point has wreaked havoc with individual’s Lifestyle when they lose money,stranded by people who evaluate them on the basis of Money alone.
Talk to any one who lost a lucrative Job industry, you would know what I am talking about.
Money can not be the sole criterion
Power, this also changes swiftly with the same disastrous results as with money.
In bot the cases of Money and Power, these reference points create more anti social , some in authority.
Mere geographical identity will not do as the location is dictated by the economic condition.
So this can not be deciding factor.
At best it can be a secondary denominator’ like the Mythili Brahmins, Vadama Brahmins of the Brahmin Community which indicate their location,but they remain in the main classification , Brahmins,
If you take Profession,it can also remain as a secondary indicator as it is subject to change.
Let us take the case of Brahmins.
Their profession is to Study the Vedas, Teach the Vedas,Perform Yagnyas, have the Yagnyas performed,Seek alms for Food and pay for the welfare of the Society and the Society took care of all their needs,
Both are missing to-day.