No, teenagers are not the only ones vulnerable to peer pressure. There is workplace peer pressure (at the place of employment.) There is peer pressure between the elderly and those younger than themselves (mainly relatives.) Peer pressure will always be a part of almost everyones life and each time the peer pressure must be weighed to see if it is worth telling anyone about or just let it go by the wayside. Some peer pressure can be good for another person who has lack of self esteem, but wilfully harming another person with peer pressure is wrong.