This is an issue with all of the smallest size pedal bikes. There are some limitations to the crank arm length and pedal clearance that affect this. When the seat is at the minimum height, this is not as optimal for pedalling. This phase does not last long however. As the child grows more confident, and can put a toe down vs flat feet, you can begin to raise the seat height. As your child gets taller and has a bit longer inseam they will have more room on the bike, also.