I forget if I’ve mentioned this anecdote here before, but once my EII and LSE grandparents visited my family. My parents gave a list of restaurants to the EII, expecting her to choose where to eat. She chose a Mediterranean restaurant. After leaving the restaurant, she mentioned offhandedly that her husband didn’t like Mediterranean food. My parents were confused, and asked her why she had picked the restaurant. She simply responded “I do.”
My SEI ex has an EII sister. When they lived together, the EII would get upset when she “was in the mood” to eat something, and the SEI didn’t offer to make it or buy it for her. This greatly annoyed the SEI, but she would often end up feeling that she was acting mean to the EII and eventually give in. I saw this happen quite a few times, and I got somewhat angry, and asked the SEI why she kept doing this. The SEI said something to the effect that the EII wasn’t capable of taking care of herself, and since the EII would never take action to make her own food, she couldn’t bear to hear her talk about how hungry she was when she knew she could just make the EII food. Lol.
LSEs might have a similar impression of EIIs: the EII can’t take care of himself, so it’s the LSE’s duty to care for them. From what I’ve seen, LSEs don’t generally seem to mind this task.