I'm curious how many people take advantage of the "borrow money against equity to finance lifestyle" approach. At what net worth / amount of equity does this st

I'm curious how many people take advantage of the "borrow money against equity to finance lifestyle" approach. At what net worth / amount of equity does this strategy start to make sense? 100k? 500k? 10M? I've heard that wealth managers offer very competitive (sometimes zero interest!) rates because what they are getting in return is your social / professional network's business.