If we start from the question 'How can we support families to best promote their children's health, learning and development and prepare them for adult life' we would do better.
Acknowledging that families matter - and that when you help them, you improve outcomes for children (Yes, I mourn Sure start)
Looking for long term outcomes that focus widely rather than narrowly.
To achieve this (and yes this is blue sky thinking ) create
Subsidised childcare centres for early years children that are open long hours that parents can book into to suit their working hours rather than rigid sessions. Focusing entirely on play, movement and development. Involving health care professionals such as health visitors and SALTs/OTs to develop activities for all children that help language and communication skills.
For primary, go Montessori/forest school - create competency. Get the children to help prepare and serve the food, wash the dishes, clean the school - they do this in many countries.
I quite liked @Needmorelego's framework, especially at secondary. Lots of opportunities from 14 to build skills - have the students run the kitchen, run a school shop, help with groundskeeping, having a workshop for building items and a shop or opportunities to market and sell it (or online). Have a beauty salon.
Get older pupils to help the younger ones - send them out to do sports as junior leaders, building coaching and mentoring skills. Get them to referee the games.
Have more opportunity for personal projects that allow children to really engage with their own interests and spend time researching and building a portfolio of project work.
Some ideas anyway