Question: Can a site survive without using any widget?
Answer: Probably, but something will obviously be missing.
Widgets were not as numerous or as active before. Sites and blogs of today use so many that it is sometimes distracting to the readers. When site owners do not fall into the trap of overdoing it, widget use is one of the most effective ways of maximizing the potentials of a site or blog.
Widgets make sites and blogs more interesting, interactive, and functional. In fact, they can be so entertaining that is is very easy to get carried away and place every available widget offered for use. Site owners have to understand that every widget has a specific purpose and not every purpose will fit the purpose of a site. Putting widgets that do not go with the basic direction of the site just shows the lack of care a site owner has for the readers. Sites which respect their readers do not place anything that will not be useful since doing so only works to make the reading experience unpleasant.
Too many widgets can distract the attention of readers especially those that block a part of the content, move around or is just plain disturbing to the eye. It is always best to determine what the site needs in terms of widgets and then choose only the ones that are most applicable. Site owners should heed the advice of many to err in the side of caution which is to start with a few instead of a single drop of various unrelated widgets since adding as the need arises is very easy to do.