My Camera is set to sRGB but when I open the raw files they are opening as adobe RGB. I take photos of clothing for online stores and when the Adobe RGB images are loaded onto their site it is turning all of the skin tones grey. I don't want to manually change every photo when I open them in photoshop.
Also, what is better for portraits and printing? sRGB or Adobe RGB?
This is set in ACR workflow options (the blue link below the main image window).
The camera setting is irrelevant, that only applies to in-camera processed jpegs. A raw file has no color space until it's opened into one in the raw converter.
Stay with sRGB until you know why you want a bigger color space. It has advantages, but also carries risks that can bite you if you don't know what you're doing.