Why are most consumers characterized as early or late majority adopters?

Approximately 68 percent of consumers are early or late majority adopters. Early majority consumers take more time making a decision on purchasing a new product and collect more information than innovators and early adopters when making their decision. Late majority adopters rely on others (innovators and early adopters)for information when making their decision. Both of these adopter types have a longer consumer decision-making process, and acquire more information, especially seeing others purchase and use a new product, before making the purchase decision.