I say it depends on if you are a parent.
If you are a parent, you will supervise and discipline your children. You will not let them out on the verandah unsupervised, and on the verandah you will not allow them to climb up on the chairs (the step before climbing from the chair to the railing).
However, if you are somebody who is occasionally troubled by the kids you have an obligation to take care of, a verandah is not for you. The kids will get out there, climb up on the furniture, then get up on the rail and hopefully nothing worse will happen.
My wife is an exceptional parent. I am making the effort to be more of a parent and less of an individual with kids. Between us, I know we will keep our children out of trouble on the verandah.
I am booked in a cat 5 stateroom for a seven day cruise and I am looking forward to using the verandah as an escape from the crowds. It sounds like you find a benefit to the verandah, so you have to decide if your children will be properly supervised and if they are disciplined sufficiently to not ignore you when you tell them what not to do.