A little research without going too deep...The US and UK obesity statistics are measured differently but the trends are similar. In the UK the “least deprived” are less likely to be obese than the “most deprived.” In the US it is the same but income levels are measured. In the US there is also wide variation by racial groups which I did not see published in the UK. But rolling it up as closely as I could find: UK obesity rates Boys 10-11 22% Girls 10-11 18% US obesity rates Boys 6-11 20.4% Girls 6-11 16.3% If the US has an issue with obesity being the main cause of dropping out of soccer then the UK must as well. And having had 4 kids play soccer, basketball, football, swimming, baseball and track I have seen kids leave the sport. I don’t think obesity makes the discussion list of reasons for dropping out. Not in any particular order I would put these in the discussion - like another sport better (more skilled at it, more successful in it, parent’s sport of choice, friends play it, etc.), region / state demographics, commitment required (FOMO), cost, burn-out, parental pressure, national team success. I don’t think obesity makes the list IMO. Not diminishing obesity as a big problem.