Yes… I understand. But how would you feel if you always experienced only the sweet taste? Would not that be boring and uniform after an infinite while? Would you not welcome some other taste of experience?
The moral aspect of inflicted pain is something that can be discussed in other ways, but for natural pain, like childbirth for example, I see it as a flavor of experience which gives wholeness its… wholeness. Contrast makes any great work of art what it is …