Here's why:
* Independent Paths: In a parallel circuit, each bulb has its own separate path for electricity to flow.
* No Interruption: When one bulb burns out, it simply breaks that individual path. The other paths remain intact, allowing current to flow through them.
Think of it like having multiple roads leading to a destination. If one road is blocked, you can still reach the destination using the other open roads.
In contrast, in a series circuit, if one bulb burns out, the entire circuit is broken, and all the bulbs go out.