What's that word where one is so absorbed into the environment around them? [duplicate]
Solution 1:
Peer pressure could be the word you're looking for.
Peer pressure is influence on a peer group, observers or individual exerts that encourages others to change their attitudes, values, or behaviors to conform to groups.
Solution 2:
I think that you are describing what is often referred to as the bandwagon effect:
- a phenomenon whereby the rate of uptake of beliefs, ideas, fads and trends increases the more that they have already been adopted by others.
(Wikipedia)