Famous At What Age Do.most Americans Buy Their First.home References. The short answer is that americans earn their first paychecks when they are 15.5 years old and purchase their first cars when they are 18.6 years old, on average. Becoming a homeowner in your 20s might seem impossible.

The short answer is that americans earn their first paychecks when they are 15.5 years old and purchase their first cars when they are 18.6 years old, on average. Some people are able to buy their first home in their 20’s. At what age do most people buy their first home?