can you bring your 11 year old child into one of the Bars with you
You bet! The only time that children are not allowed in one of the bars onboard, is usually late in the evening when occasionally a bar or two will turn into more of a "nightclub". Then those areas will become 18+. You will be able to see in your cruise compass which bars become night clubs and at what time they will become 18+.
We have often gone to grab a pre or post dinner drink with our kids. Have a great cruise.