Why do girls with dragon tattoos have dragon tattoos?

Tattoos are usually for these reasons: some people are beautiful, some people are fashionable, some people are domineering, some people commemorate, and some people hide their scars. According to the plot analysis in the movie, she should have hidden the scar. The girl in the play is regarded as a lonely problem girl, who is often bullied or even beaten, leaving scars on her body inevitably. Probably to make people afraid of her or something. It is normal for westerners to have tattoos. For example, many stars or star tattoos, which is the embodiment of personality.