@DancingLions
People often say Grandparents get all the good bits and get to hand them back. But they are also at the whim of the actual parents! They still have all the worries about their GC while at the same time none of it being within their control. What I've seen of it, I'm not sure I want! Of course if I had a GC I would love them dearly but I'm just as happy without.
This is pretty much how I feel. I have seen many an older person - like me - have grandkids dumped on them left right and centre.
Another cousin of mine who is 3 years older than me, got married at 17 to a man of 19, and had 3 kids when she was between 18 and 23, (2 boys first at 18 and 20 - then a girl at 23.) At 24 she took the little girl and ran off with another man (and she announced on leaving that he was the father of the little girl.) Her husband was stunned and so was the whole family. He worked full time and plain and simple couldn't cope on his own with the boys. He told my aunt he was going to put them into care. (Cousin was a full time SAHM.)
My aunt) who was 52 ended up having to look after them. She didn't want social services involved (and didn't want to lose the boys,) so she took them in. Looked after them for FIVE YEARS whilst my cousin lived the life of Riley with her new man and their daughter. This man then left her and the little girl (she was 6 by now,) and moved in with another woman. Cue my cousin and her daughter moving in with my aunt and 2 sons who she had left. (Her DH had divorced her by then.) She was housed by the council shortly after, met another man within a year - and had 3 kids with him all within 5 years. Split when the youngest was 5. My aunt spend her 60s and 70s looking after my cousin's children 80% of the time they weren't at school!
The fact my cousin had fucked off for 5 years and abandoned her sons and dumped them on nana was never mentioned again.
But yeah tl;dr, some grandparents can - and DO end up getting used. Many grandparents get used as free childcare. I sometimes suspect that being a grandparent isn't the rosy, shiny, painting it's portrayed as. Despite all the vom-worthy 'my grandchildren are the best/my world/my everything' type shite you read from people on facebook. And the hilariously cringeworthy posts that say they wish they'd had their grandchildren first (as they prefer them to their children clearly LMFAO!)
I also have a pretty strong feeling somehow, that despite all the suggestions aimed at the OP to volunteer to work with children - and with single mums who are struggling etc - that she won't do it. She won't offer to volunteer anywhere.