AITA for refusing to help my wife get our kids ready for school?

For context: Our kids are 11, 9, 8, 5, and 3. The older three are in elementary school, and the younger two are in preschool.

I am a believer in teaching my kids to be responsible for their own actions, and face the consequences, either good or bad. Every morning, after I get done working out and getting dressed for work, I make the family breakfast, usually something simple like sausage/eggs, croissants, cinnamon rolls, homemade yogurt, etc. My idea is everyone will have a better day with a filling, healthy breakfast.

While I’m doing that, my wife is frantically running around trying to get all the kids ready (i.e. dressed, teeth brushed, hair combed, etc). This has caused issues as she says I’m lazy and how I refuse to help get them ready, instead wasting my time making breakfast, when they could just grab a poptart or something.

What I have said is that the older kids should be able to get themselves ready, they know what needs to be done before the bus arrives, and it’s on them if they miss the bus. I get needing to help the younger two, but at what point is it enabling instead of helping? If they miss the bus, that’s a natural consequence, and I’ll be the one taking them to school if that happens. I have to take the younger two to preschool anyways, so stopping by the elementary school isn’t that much of an extra stop for me.

It’s to the point that she resents me in the mornings because of my “laziness”. When she isn’t in the house during the mornings, my routine doesn’t change, other than to get the younger two ready, which takes less than 5 minutes. The older three can magically get themselves ready with no help from me, and have never missed the bus on those days. This has somehow made my wife even more angry with me, even though I don’t bring this up to her, but the kids do when she asks them how getting ready went that morning.

So AITA?