My relative's complaint about Obamacare...

Plans under the ACA markets may only charge rates based on age, family size, tobacco use, geographic area, and metal tier (platinum, gold, silver, etc.)

From http://www.actuary.org/files/Premium_Change_ACA_IB_FINAL_050813.pdf (note that it’s a PDF)
This above rule applies to the individual and small group markets. Large employers’ plans and grandfathered plans from before the ACA are not subject to these limitations.