Well, it's not a fad.
An ongoing tradition over many years.
Perhaps it is a fad in Western culture, but people have been getting them here for decades.
I did watch and interesting documentary once for a clothing and design class I took.
Tattoo's have been applied and implemented throughout history.
Hawaiians have special tattoo's that they apply to suit their personalities.
There is a tribe in Africa, where ladies that pass through puberty have to go through a similar process.
They take a chisel, and literally bang the skin open.
They choose different areas, but the ones that I have seen are across the neckline.
Once the skin had been broken, they rub dirt into the wounds and let it heal over.
I am sure you have seen this, the result is bumps raised in the skin to make a pattern.
http://www.vanishingtattoo.com/tattoos.htm
I see what you're saying, people get a certain type of tattoos because they are in fashion. Like shitty tribal pieces they don't know the meaning of.
My sister's BF is Chinese, and has read people's tattoos for them telling them they don't mean what they want it to.
That is the person's fault for not doing their research and jumping on a bandwagon.
They get those tatts because it is a fad, yes. They are the stupid ones for sure. Totally lacking in their own creativity. I get it.
To make my point brief, Western cultures jump on a tattoo fad. The tattoo itself is not a fad. MHO
SD