I'm not saying it's "impossible". I'm saying that "parents generally don't do it."
I suspect it's because measuring it is more difficult. Math is easy to measure. "Can you do those problems?" English is a lot harder to measure and takes mroe time. Proofreading a paper takes time--and you have to know how to write. Listening to a speech takes time. Discussing a book means that the parent needs to read it, too.
If that’s your theory, then I don’t see how reducing time spent on math would help.
If math requires so much less time, then the amount freed up wouldn’t be enough for the type of support you expect for ELA.
If parents shy away from ELA because it requires a type of effort that math does not, then reducing math isn’t going to somehow make them more willing to read books or learn to proofread.
I’m honestly surprised that you think slowing down math will help with ELA.
I suspect it's because measuring it is more difficult. Math is easy to measure. "Can you do those problems?" English is a lot harder to measure and takes mroe time. Proofreading a paper takes time--and you have to know how to write. Listening to a speech takes time. Discussing a book means that the parent needs to read it, too.