I did one with DD who was 14mths. You do get food for them, or on most airlines you do.
DD was too big for the bassinet so we were given a seat for her, we were not entitled to it, but if you call the airline and explain that you are happy to give up your bulkhead seat if you could be seated next to a vacant seat.
I did my travel alone, no one to help and my mantra was 'it's only 24 hrs' we did lots of walking up and back the cabin because at her age she had no interest in the TV, at 23 mtgs I think the TV would be more of a novelty.
I personally would do it and am going back to the Uk next year hopefully with a 1 and a 4 year old - alone again!


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