Why is this society so biased against girls with tattoos?

In fact, this is mainly the comprehensive quality of tattoo people. Tattoos are a subculture. I don't deny that there are excellent people in the tattoo group, but in general, the tattoo group is independent and often associated with alcohol, tobacco, gangs and violence. These are too different from the mainstream culture, and these differences are negative in the mainstream cultural values. Specifically, if you watch movies of gangsters and police robbers in Europe and America, you can see the definition of tattoo groups in mainstream culture.