There seem to me far to many flight schools that mandate excessively high approach speeds which IMO is largely responsible for the busted nosewheel accidents.
I think the reason the nosewheel breaks is because the landing is not properly held off. Too high an approach speed might lead to not properly holding off, but will not in itself break the nosewheel. However, too high an approach speed correctly held off will result in l o n g float just above the runway as the speed bleeds off. That's why some folk plonk it on 3-point and stand on the brakes.... bye bye nose leg, eventually.