I recall finishing the first year of engineering (and secondary school before that) without having my own calculator. Meanwhile, most kids around me could not

I recall finishing the first year of engineering (and secondary school before that) without having my own calculator. Meanwhile, most kids around me could not do something as simple as 49/7 without a calculator. It's a loop. If you have a calculator, you use it more, so you never get better at maths, so you use a calculator more.