When we are not okay with our kids growing up without maths, Why are we okay with them growing up without knowing the names of Allah?
As knowing Math is the fundamental of many career paths, the fundamental of Emaan is knowing the names & attributes of Allah. Knowing the Rabb, will only help your kids grow closer to him and at the same time build better characteristics.
You helped your kid learn math, similarly, Gift your kids this basic fundamental, which will help them succeed in this life and hereafter too.