Age-friendly and inclusive volunteering
The below guides from The Centre for Ageing Better emphasize volunteering should be sociable and connected, enabled and supported and flexible and responsive to be age-friendly and inclusive.
They also emphasize the barriers that can stop people from getting involved: structural, emotional, practical.
They are well worth a read. Click the links to open the pdf.
Helping-out-engaging-older-volunteers
Age-friendly-and-inclusive-voluteering-review-2018

