I agree with Neverplan. I don't think they miss out anything. There is still plenty of opportunity for one on one time with each of them. And yes sure, Tom probably gets less one on one time with me than Jack did. But Jack didn't have a big brother doting on him. And I know Tom loves it, he lights up whenever Jack is around. Often he stops crying just because Jack is there.

The one area where I think Tom sometimes does miss out, is that Jack has lots of activites, so often we have to go out when Tom is asleep or due for a sleep. So sometimes his naps are late, sometimes they are in the car, and often they are in the sling while we are out. Sometimes this makes him a bit unsettled, but mostly he is ok. And in truth, Jack probably also had this happen a bit anyway as I still had things to do, and also he was my first so I was less good at noticing tired cues.