Comparisons to developing countries usually forget about demand - the average electrical demand in a typical Indian home is hundreds of watts to a few kilowatts depending on how affluent the home is.

The average north american home has several kilowatts of connected loads, not to mention equipment that must run such as heating/cooling, large fridges and myriad electronics.

Banks of lead acid batteries can indeed work but they are large, may leak and always require some sort of hazard protection. You can get around all of this in a country with lax standards but are unlikely to do so in the west.