Because it’s likely going to be one of the last contracts he ever earns. It’s easy to say football players have made loads of cash but most went born into money management skills and most end up bankrupt after a few years as your income dries up but you have to survive on it for the next 50 odd years, will have expensive cats, house, family, staff etc
Yea an enviable position but doesn’t mean you don’t want to secure the best for you and your family’s future
He is married with 3 children and will want to do the best for them as he possibly can, regardless of what he has already put away as even if he goes into coaching or management, the salary will be drops of water in the ocean compared to playing