Sorry if this isn't the correct thread but maybe someone knows the answer: do the armrests in Economy on BA's A350, especially aisle seats, go all the way up? I've been on some flights with KLM where the armrest only goes up to about 45 degrees and can't be stowed up and parallel with the seat back. I ask because my mother has mobility issues and getting her into economy seats without raising the armrest fully is extremely difficult.
In WT the arm rests can go almost (but not quite) flush into the seat. The arm rest needs to be down for take off and landing, but if it is just to enter and leave the seat there won't be a problem.
However note that the front seats of the WT cabin have fixed sides; also note that if upgrades to WTP (given the proportionately large WTP cabin and BA's selling policies) that all WTP seats have fixed sides to the seat next to it.