Worse than that....Obamacare requires coverage up till age 26. But a business owner I know was told by his insurance carrier that he has the OPTION of adding dependent coverage up till age 30.
And what is a voluntary OPTION today becomes MANDATORY tomorrow.
I don't see a problem with it being optional. The insurance company probably wants to incentivize their customers to add younger family members to the plan, since the younger folks will probably pay in more in their premiums than they take out. Just sounds like good business sense on their part.