These short videos are obviously meant for kids, they convey a short but educational message & lesson to children about certain questions they might ask, but in reality I think it was a free reign for animators, writers & the like to let their hair down a bit & have a bit of a laugh.
The subtle little signs of humour, wit, sarcasm paired with open inpatients towards Forky is hilarious, as a 47 year old bloke, I stumbled upon this on Disney+ & found it very funny, I only wish they did more.