Mandating EV chargers is a horrible idea, but I think $25,000 is a bit high.
If you already have a 240 V outlet then the changer is more like $300 to $1000 and it would make a lot more sense to get one that matches your car. Retrofitting for a 240 V outlet could be an additional $500 to $2500. Having the outlet added to a house during construction should be at or below the $500 figure.
Like I say, a bad idea, but not $25,000.
It depends on how fast you want to charge. Level 1 is 120 volt. Level 2 is 240 volt, 4-6 times faster than Level 1 and might be enough for overnight charging. Level 2 chargers cost $600 and another $1,000 to $3,000 in labor to install, so in the ballpark you quoted.
A level 3 DCFC station will run you from $12,000-$35,000 for the charger and associated hardware. That cost makes them impractical for most homeowners to install, and a level 2 station is often more than enough. DCFC home stations usually require substantial remodeling to install the electrical infrastructure necessary to funnel enough power through to your EV for an 80% charge in half an hour—around 480 volts of output.
The big problem is the local legacy distribution system step-down transformer cannot handle more than 3 or 4 EV chargers before the neighborhood dims.