Why is a series circuit not advisable to use as connection at home?

Every lamp and every appliance in your home has a rated power which can only be achieved at its rated voltage. These values are shown on an appliance's nameplate or is printed on each lamp -e.g. your lamps may be rated at 100 W / 230 V. It is, therefore, essential that every appliance is subject to its rated voltage of 230 V. This can only be achieved by connecting them in parallel with the 230-V supply. (For N America, read '120 V' for '230 V')

A secondary advantage is that, with a series circuit, only one appliance has to stop working, and all the other appliances would stop working too.