One of our parenting aims was to get our children to be independent as soon as possible. That included making their own sandwiches for school from about the age of 5. (No school dinners where we live). It worked well as they could choose the filling and were more likely to eat them. One of them became expert at making ‘gourmet’ sandwiches.
They also had to iron their own clothes (if they wanted them ironed) from about 11 or 12 years.
I see some adult children (mostly male), still living at home, whose mothers do everything for them, including preparing packed lunch for work. Not a great training for living independently, or with a partner. ?
The main aim of parenting is to turn children into responsible adults - that includes letting them learn the consequences of their own actions- no sandwiches made- no lunch!