I am a former employee of Eurotech, and used to be Paul Grey's left hand man.
Do not trust him. Your "invested" money is used on his holidays; cruises around the globe; weekend trips to Singapore. Your kids have a VERY low chance of ever becoming serious footballers, as it is such a challenging and competitive industry.
Believe me, you are not onto a winner here. If your child wants a future in sport, please go for it. Just never go for Eurotech.