As long as you can provide good quality care, there isn't much of a moral difference how it's done. Just don't see how a trained professional changing vessels is worse than resentful daughter-in-law doing the same.
How was it smug in any way? I was trying to draw parallels in an attempt to understand your thought process.
You asserted that as long as the quality of the care is acceptable, the source shouldn't make too much of a difference. I tried to give an example that would meet these requirements and still be questionable and you completely shut down.
Well I gave you an example: childcare in nursery is widely accepted. You however got upset to hear a straightforward answer to a question expected to demonstrate your moral superiority.
Can this concept be extended to a parent-child relationship where the parent is replaced by a trained professional?