You do know that a transparent tattoo doesn't mean 100% transparency, right?
A transparent tattoo has parts inside of it where the skin is still completely visible or the skin is partially visible.
A solid tattoo blocks out your natural skin color entirely and is generally associated with criminal gangs such as the Japanese Yakuza or tattoo addictions.
It's unfortunate that it's not better regulated and thus safe to yolo just get one, but glow in the dark tattoos that use ink that can't be seen in ordinary light are particularly cool.