Answer: During bronze age, Ancient people had been using bronze to make tools or weapons necessary for hunting etc. Metals like tin and copper was used to make bronze thus the name bronze age( denoting the period of usage of bronze). Metals were used before and also after bronze age.
The last Erickson stages is called
Adulthood
Golden Years
People conform to peer pressure because as imperfect humans we don't always make the right decisions so people conform to peer pressure because they may feel left out or accused of not doing what others are doing. Impact? well peer pressure is common and devastating so its like a burned scar emotionally. Me? No due to my age I haven't been in that type of situation but soon I will and I hope I don't give in to pressure.