Posted by:
Tevai
(
)
Date: February 14, 2017 11:49AM
An eruv is only necessary for highly-observant, and almost invariably Orthodox, Jews (which means that highly-observant Jews tend to cluster in areas where eruvim exist, and the residences within those eruvim are more valuable than nearby, and possibly architecturally identical, residences outside of it).
Legally, an eruv is an extension of a person's own home, which means that, because the area of the eruv is considered every resident's personal "home," it extends the number of foot steps BEYOND which it is not permitted to walk on Shabbat and the relevant Jewish holidays. (Not ALL of the Jewish holidays, just SOME of them.) Since observant Jews must walk to shul on Shabbat and the other relevant holidays, this becomes important to those particular Jews.
In reality, and in contemporary life, an eruv is a very thin wire, which goes across the tops of the power poles and is attached, as necessary, to them. As I understand, the eruv wire cannot be seen from the ground (I have certainly never been able to see one!!!), but every observant Jew affected knows exactly where that thin wire delineates the area BEYOND which they are only allowed to walk a certain number of steps (I forget the number) before their "walk" becomes, by Jewish law, "work." ("Work" is very specifically defined in a very specific set of ways...and there are some counter-intuitive anomalies, for example: it is perfectly legal to rearrange the furniture in your house on Shabbat, no matter how much effort is involved or how tired you get, because there is no "cutting" or other specified-by-Jewish-law activity involved in rearranging furniture, and you can walk all you want to walk, or carry whatever you want to carry, within the confines of your own home.) [*]
Eruvim are just a legal and ancient way for Jews to do the things they need to do on Shabbat without breaking Jewish law, and that tiny wire on top of the power poles doesn't affect non-Jews in any way, nor would non-Jews be likely to even know it was there unless they live within the eruv and are told that their house has an increased value on the market because of its location within the eruv.
[*] Other ways Jews use to live within Jewish laws on Shabbat (etc.): making their house key into a pin which can be pinned to their clothing as decoration...pre-paying, BEFORE Shabbat, at a restaurant so the family can eat dinner out on Shabbat without having to use money or electricity for a credit/debit card...women in the shul having their own "hiding places" in the women's restroom for combs, lipstick or lip pomade, etc., etc., etc.
Again, the Jews involved are highly-observant and Orthodox, which means that they are, demographically, a minority within the Jewish population as a whole.
Edited 1 time(s). Last edit at 02/14/2017 11:56AM by Tevai.