interesting Karen also the eary christians they used the fish symbol? right, I never see a early cross of any kind.
Fish, tridents, etc. A symbol has no inherent meaning on its own, only that which the culture in which it is used gives to it. There have been lots of symbols used by the Christian Church over the centuries, none of them unique to Christianity. Heck, even the pentacle was used as a Christian symbol at one time (see the device of Sir Gawain).
answers.com/topic/pentagram-2
"According to Heather Child’s Christian Symbols, Ancient and Modern[6], the pentagram is a symbol of the five senses. Also, when the letters S, A, L, V, and S are inscribed in the points, the pentagram is a symbol of health (Latin salūs).
Medieval Christians believed it to symbolize the five wounds of Christ. The pentagram was believed to protect against witches and demons.[7]
The pentagram figured in the heavily symbolic Arthurian romances.[7] It appears on the shield of Sir Gawain in the 14th Century poem, Sir Gawain and the Green Knight. In the poem the five lines of the star are given multiple meanings: they represent the five senses, five fingers, the five wounds of Christ[8], the five joys that Mary had of Jesus (the Annunciation, the Nativity, the Resurrection, the Ascension and the Assumption), and the five virtues of knighthood which Gawain hopes to embody: frankness, fellowship, purity, courtesy and compassion.
Probably due to misinterpretation of symbols used by ceremonial magicians, it later became associated with Satanism and subsequently rejected by most of Christianity sometime in the twentieth century.[7]"
I hate to ask but perhaps crosses can be cultural?? and yikes even trendy??? Certainly rosarys can be as well with pearls etc. Not saying its wrong but all very interesting.
I would say absolutely they can be cultural and even trendy

. Plain, ornate, with jewels, without, with extra curlicues. those that represent different saints (St. Peter’s Cross), different areas (Jerusalem Cross), Celtic and Norse crosses with interlace, all sorts. Artistic convention, as well as use of plainer or more ornate materials to reflect the wealth or position of the wearer (say a more elaborate one for an abbot) or the piety/vow of poverty, in the case of a plain one for a monastic, for instance.