“They didn’t and now 40, 60, 75 watt incandescent bulbs are being replaced with LED bulbs that are 10X more expensive, or fluorescent bulbs that are more expensive.”
A friend has several rental homes. When people leave now, they take all of the light bulbs.
I have the same problem and tenants complain they can't dim the lights anymore. My solution is to only put in 1 bulb in each fixture and to remind tenants that voting for Rats has consequences.