I was so excited to book my first flight with a Turkish A350 but I forgot one major problem: I have an infant. In the 2-3-2 configuration, the adult with the infant could sit either in the window seat or in the middle. So I didn't think much of it and thought my wife and I could take the middle 2 in the 1-2-1 with the infant on our lap... apparently not. Only window seats allowed for infants which is inconvenient for us and also inconvenient for the single people out there who want to sit alone at the window seat but the annoying adults with infants have taken up all the window seats.

We finally settled for 2A and 2D so that:
1) the middle adult can be away from the other middle person (especially in case our infant hangs out with the middle adult during the flight)
2) the window adult + infant can be closer to the window so the toddler can look out.
3) to keep the window adult and middle adult in one line so that we can still talk, infant can go back and forth, etc.

Also thought about 3A and 2D which looks like would make access between the two adults more direct but it also wouldn't give the infant any "private" space to hang out in (while still seeing both of us) since the only space between the seats is the corridor whereas 2A has that small bit in front of the armrest/cubby. I guess the infant could also hang out in the spot between 3A and the window which would give the infant full privacy but still, 2A seems better.

I usually travel with family or friends which is why I really like the 2-3-2 in TK since it's gives good comfort while allowing us to still be close to and talk with friends/family. I guess our future flights will have to be more antisocial.