My wife wants to send money to our grand-nephew in college. How can I push back without starting a fight?

According to a report by MarketWatch… “I do not see him as our responsibility.” complete report is on below link. Source: https://www.marketwatch.com/story/my-wife-wants-to-send-money-to-our-grand-nephew-in-college-how-can-i-push-back-without-starting-a-fight-9284311a?mod=mw_rss_topstories