18 However, the legislation is also, and, in my view, more importantly, directed to ensuring that those who do not consent to sexual activity are not required to engage in it. In this context, it is recognised that the capacity of a person in this age group to resist moral, social, emotional or other pressure from a person more mature than themselves may be very limited. I set out some of the legislative background in Marris v The Queen [2003] WASCA 171. At [13] of that decision, I noted the comment by the Hon J M Berinson, the then Attorney-General, that " ... the clear intention and target is not sexual activity as such, but sexual activity involving some element of abuse". I said there, and I repeat, that that is a concept of considerable importance in relation to sentencing in respect of offences of this kind. The greater the element of abuse, as evidenced by matters such as disparity in age, or the use of force, or other types of pressure, or of a pattern of "grooming" behaviour, or a betrayal of trust, the greater the culpability.