Thank you goodluckkitty,
Well, the mother wants to "save" her boy just from the depth of her heart. She'll do anything for that. She always tells me that she is just longing for that. Moreover, she does not fit in her job (computing engineering) and she is not happy with that. Should we have a lot of money, my boy would already been homeschooled.
Yes, we often did attempt to reproduce homeschool during morning on the week-end days. And sometimes, DW is just desparate and sometimes she is enthousiastic depending on DS behavior and work. Anyway, it is very hard to compare with what homeschool could be since during the holidays and week-ends, DS knows that he should not be working at all ...