Do you mean actually witnessing the birth?
I certainly wouldn’t have wanted to be present for the births of 3 Gdcs - too much of a worrier! - and I’m sure having her dh there was quite enough for dd, but we were always there only hours later, for first cuddles.
Fine with me.
Though now I come to think of it, Gdc 3 was a very calm water birth, filmed from over her shoulder by SiL, so we did see that later. It was also shown to the elder siblings, only 3 and 4 at the time, which I thought a v good idea.