the whole point of this discussion that the proposed temporary lowering retirement age would cost more then any benefit it would have.
Nobody in the right mind will leave a good job unless for health reasons or taking a voluntary leave with a good package proposed by the employer. Many employers are doing it themselves, offering employees in late 50's benefits to leave, anyone who can afford it left already.
The difference between these sponsored by government and private employers are who's paying the cost of these benefits, the taxpayer or the corporations, besides the point that the government being already late for this party, like always..
Optimism is a lack of information.