You imply we aren't teaching emotional regulation on a daily basis? We have always placed a great deal of emphasis on talking about feelings and developing "tools for our toolboxes" to deal with them. Unfortunately those tools are largely inadequate when there isn't a rational cause for a debilitating emotional state.
People who have never experienced a particular challenge are quick to assume credit for its absence and assign moral failings to others who experience it. It's insufferable but common.
Imagine a millionaire who had millionaire parents lecturing his children on how they're not allowed to be poor. Lo! They're not! The lectures worked.