they don't celebrate 'with' them though. they bundle them, hang off their necks etc (see nyland in the carabao cup game vs leicester). whilst it might be in good spirits, these are elite athletes who have just done 90 and sometimes 120 mins of football and just don't need it.
i bet the players **** hate it...if they wanted to celebrate with the fans, they'd join them at the pub after the game. never do though do they, cause they don't want it.