We think this is an old English road sign because no young girl would be seen dead in a frumpy dress like that. We interpret is as a warning that she is not going fast enough to achieve lift, and will soon stall and come crashing to the ground like a crow that lost it feathers. It would be bad enough if it said “slow child”. We are aghast to discover there was so much of this going on without even a mention of it on CNN.