I don't think everything has too be the child's idea. Ds7 has complained about maths being too easy since he started school but he would rather watch minecraft videos at home. I insist on about 10 minutes about 4 times a week maths, I insist he put his tablet away and play with lego or ride his bike. When he was 4 I insisted he do a term of ballet to improve his skills in listeningand following directions - he did another two terms by his own choice.