Problem child or not, he is still a young lad who left Colombia at 17 to go to 2 big countries, which each then offered him a lot of money and lots of spare time when not playing. As someone else said, for Villa it's win-win. If it's a storm in a tea cup then great we have a talented player in our squad who can develop over time. If he wants out then we'll get a load of cash like the last time we had a dim-witted, uber talented, man-child with aspirations of grandeur elsewhere (maybe not £100m though).
I trust Unai & Monchi to not let him be a distraction and to bin him off if they need to. If they keep him this summer, it tells me all I need to know
*Also I checked on Instagram and he follows a lot of footballers and large bottomed women from South America. John McGinn combines his 2 big loves so they should be best buds!