Many Taoists are strictly vegetarian in order to keep in line with the Tao, but a good number of Taoists are not vegetarian and this is not seen as an infraction of Taoist values. Alcohol is also generally not consumed. Other these two things, there are no major dietary laws or practices that Taoists follow.
Taoist are allowed to eat meat.
No, however not all Jews follow the Jewish dietary laws.
Some are vegetarians and others follow the dietary laws in Leviticus 11
What do you mean? Adults should simply follow all laws! ;)
There's no exact number, but it's mostly Orthodox Jews who follow the dietary laws.
The kosher dietary laws were designed to preserve health standards, and it's mostly Orthodox Jews that follow these laws.
There are no Catholic dietary laws.
All of them hopefully
Without laws there would be chaos. Laws are promulgated so that there can be an orderly society.
No. A pig is a split hoofed animal and that is against the dietary laws.
Kosher Laws
Depends on the Christian. Some eat any and all while some follow the dietary laws of the Bible in Leviticus 11.
There are many different types of Jewish people in the world, and many of them choose to keep kosher. The group that stresses keeping kosher and following the Torah the most are the Chassidic. See http://judaism.about.com/library/3_askrabbi_o/bl_simmons_chasidut.htm for more information