Why does my wife seek my involvement in every minor task?

These are examples of tasks we've split between us which she'll rope me into: 

• getting our kid ready for school or in/out of the car. She'll ask me to get up to see them off and then inevitably ask for help (shoes, putting him in, fetching something, etc). when I take my kid to school shes still in bed.
• bathing/putting our child to bed. On my nights I do everything - bathing, brushing teeth, dressing, transitioning with reading, lights out, rocking, etc. When its my wifes turn she never starts the transition and prompts me to. She'll call downstairs for me to fetch something if im not nearby.
• cooking and watching our kid. I'll be cooking and shell be watching until shes not, for innocuous reasons, and I end up doing both (tricky with a hot stove). It might be doing some chore, work, looking at phone, bathroom, etc. All reasonable things, but very frequently - my kid will just wonder into the kitchen seeking my attention every 5 minutes because his mom is pre-occupied with something else and doesn't realize. Always asking me to put him in the high chair as well for some reason, despite her literally waiting on me to put food on the table.

I think all of these are pretty normal in isolation but the frequency is so high and one sided. And I think it really crosses a line when its for responsibilities we've agreed to divide, and then not respect that the other person isnt obligated to constantly help with it. Not only that but "helping" often morphs into completely shifting the responsibility to me which makes it feel like I have to be far away. It just feels like she has to find a way to involve me in everything, although I don't think thats the intention. Mainly, I just want to understand why.

Transitions seem to be particularly hard (getting to bed, seating at table, getting in/out of car) but im not sure what to make of that. It somewhat feels like insecurity (wanting help), or somewhat like resentment for me doing something other than helping (reading phone, book, working, drawing etc.). I have expressed concern about this and it's met with anger and defensiveness (a whole other communication problem, I know).