IMHO, they want to nag us to bring their product(s) to our attention. I think some of the updates are a crock and I refuse to play. I've turned off all notifications and update manually IF I want to and IF I think the update is worth it. Many are not. Some programs were so annoying that I simply uninstall them.
I have a long list of apps that need updating but, after catching on with this foolish game, I haven't updated many for months. Granted, many of the almost daily updates are for children's games. I'd remove them all except that my grandchildren enjoy them. As an aside, I turn wi-fil off whenever they use most of the games to avoid getting constant nags to try other games.
These updates are kind of like saving a product in your Save for Later list at Amazon. Some items frequently change in price just a few pennies so you're reminded about the product by the notification screen when you enter your cart.
Obviously there are legitimate updates to apps like after a Google Android upgrade. But you need to learn to separate the wheat from the chaff. Otherwise, your tablet will be agitating rather than fun.