I'm old school, they should come to you, but unfortunately they have "grown up and moved on" so to speak.
We (my sister's and I) always went to grandparents, my mums parents were half a mile down the road so we'd walk or bike. My dad's were 5 miles away, we used to take it in turns, there are 4 of us, so 1 would stay at dad's, 1 at grandmas's , they lived opposite each other, it was also the only time you went to bed at 7.30pm Friday & Saturday due to boredom when at Grandma's! (Sorry, but it was true). As we grew up (teenager's) it changed to seeing them Saturdays only, as we came into adult hood, Saturday jobs changed that and wanting to go shopping etc. Eventually I was the only one (I'm the youngest) who would go see Grandma for a couple of hrs every Saturday. When she died, the only reason I kept going was her last sister, who was an absolute hoot! Loved her gin, all her knew her liked her. Grandad was still alive but he always saw us girls as things that should be seen and not heard and that remains with you!
I always NEVER thought much of it until now when I'm getting older and looking after mum, who is 81 and IS decrepit, she has said herself how she never thought she'd be so bad.
My niece became a mum in 2022, so now I'm A great aunt!! (Bloody hell!) Mum had.that niece to rear so my sister could work, in mid 50's, she TOTALLY understands what the knackeredness feels like for all you 50ish grannies! (My sister (grandma) takes a.day off each week to help with childcare,.she too is knackered!)
But as all of mum's grandchildren arrived, they ALL came to see mum. If mum felt like it, she'd clamber in car and drive to see them, but mainly they came to see her, for years.
Then they have grown up! She has 7 grandchildren aging from 24 - 28.
The new mum comes here almost every week for half an hour with sprog, most times, though I have told mum that sprog is just next door, so wobble round on walker!. (my Sister is a child minder other half of our semi and looks after sprog 2 days a week!) The other grand children, despite WhatsApp and even older technology called phone calls, don't seem to realise that Mama isn't going to be around for ever! They texts occasionally but have "moved on" so to speak.
Apologies for the long post, but it shouldn't have to be the grandparents having to make the effort. If you WANT to go to them, go, but I think the grandchildren should WANT to see the oldies, go see granny/granddad!