that's certainly an issue for employers to consider, I was talking about individual plans on the exchanges
if someone jumps the company ship and goes to an exchange to get a subsidy then there is a penalty involved
In my state anyways, individual insurance was always charged in relation to age. Compared to group plans I imagine you are correct. Especially if your company was all 50 year olds and you were the only 25 year old.
But in the individual market pre ACA you were always charged in relation to your age band. I am going off total memory and could be faulty. But there was a minor uproar when rules were being set that the young were in effect subsidizing the older at 3-1. I could have sworn in traditional pre ACA individual market the ratio difference was closer to 5-1.
Most insured 30 year olds in the US were, and still are, in group plans. The rate for them is higher than in the individual market. It doesn't matter who pays, the rates are still higher.
Individual policy premiums for some 30 year olds in the pre-ACA days were lower. That is an artificial point of comparison, however, because so many were excluded and insurers regularly rescinded policies after the fact.
Introducing age into insurance pricing was, and still is, a way to exclude individuals from groups and keep costs artificially low.