Companies used to invest in building up their employees and even in retaining them by giving competitive pay. I can hire any junior developer and train them to

Companies used to invest in building up their employees and even in retaining them by giving competitive pay. I can hire any junior developer and train them to be a better developer, unless they themselves do not want to be a better developer, I cant fight lack of motivation. A lot of senior developer roles list things that make it sound like senior devs are supposed to mentor other devs but they never seem to do so.