Young players often learn the game while training & sometimes playing on artificial 3G turf. For playing in small groups (usually 5-a-side) it's recommended to wear rubber-soled "turf trainers" as they are designed to suit the fast pace.
When playing on turf with larger numbers, many young players prefer moulded studs. Both adidas & Nike have kids' boots dedicated for use on artifical pitches: you'll find them in this section. The adidas boots are marked "FxG" & the Nike ones "AG".