Extending the spectrum of knowledge

We can save abandoned pets, but can we save abandoned people?
It’s not just the homeless, the mentally disturbed or handicapped people - young or old - to consider.
There are also the orphans of life - the elderly.
As their numbers increase dramatically, the burden of caring for them falls on the government which may attempt to meet the most minimal physical needs but fails to recognize mental needs and potential. And the brain should be an important part of the equation.
If the elderly were sent back to school to meet the changing world, would that be much different from sending pre-school children to classes to learn to cope and grow in the world in which they are entering?
Isn’t the need for preparation for the future as great for the seven year old as it is for the seventy year old?
Schooling isn’t needed for history, mathematics or literature for this person we can call “SS” for Seventy Something. The SS needs a foundation and training in the changes in technology in order to adapt to the new world.
If people were allowed the time between retirement in their early 60s to kick back and enjoy life, new schooling could begin in their 70s as half-days daily for five days to prepare them for the future which is continuously being extended by medical advances. This change would allow development of the mental side of life.
And just like the pre-schooler who resists being mandated to leave his or her secure and known environment, the SS may find that the stimulation to their brains and the socialization of learning will take away the isolation and sometimes uselessness they often feel and experience.
If the world can find a spectrum of knowledge at the beginning of life, why not an equal one at the end?