Congratulations on you new grandchild, how lovely for you all.
As to your question, I'm not sure how much things have changed since you had your 13 year old, I think there has always been different advice out there and it's more about what source you chose to take it from - I think that's what can cause issues between parenting styles and families, sometimes people get caught up in their way and believe everyone else is wrong. I suppose if it were me I'd just be checking in with the parents before spending money on equipment that they might have decided they don't want to use yet. In the meantime there definitely isn't any new rules about being allowed to cuddle and love them as much as you like (I hope).