I think the reservation is that when you offer subsidies for electric cars you can be damn confident that it will displace a gas car. For e-bikes it's less clear and they might end up displacing bikes for recreation which is arguably a net-negative.
I think instead of a POS subsidy I would make it a fairly substantial tax credit if you had fewer registered vehicles in your household than adults and keep it rolling every year. And for e-bikes specifically you can do the same sort of thing in addition, if you commit to not having a registered ICE vehicle for 1 year you get say an up to $2000 rebate on the purchase of an e-bike you can claim every so often like maybe 5 years.
I think instead of a POS subsidy I would make it a fairly substantial tax credit if you had fewer registered vehicles in your household than adults and keep it rolling every year. And for e-bikes specifically you can do the same sort of thing in addition, if you commit to not having a registered ICE vehicle for 1 year you get say an up to $2000 rebate on the purchase of an e-bike you can claim every so often like maybe 5 years.