Unfortunately, good induction cooktops are not available everywhere. And certainly not available for cheap. Where I am, there are no 4 hob cooktops available.
Also, induction and electric cooktops need cookware that has flat bottom. However, constant heating and cooling of cookware means over time, the bottom will develop a curve for most of them.
This unfortunately means that gas stoves are not going anywhere, at least in Asia and Africa which are cost sensitive markets.