I think this requirement for 4 sessions of football per week for a 6/7 year old is ridiculous and unnecessary, it eats up too much of the child's time, too much of the family's time. That's why my DS (age 6) doesn't attend a football club.
He kicks a ball around in the park with us and his younger sister, and he has a tennis lesson for an hour a week, and a half hour swim lesson.
The rest of his time is unstructured sport/swimming/playing. But I'm not prepared to subject him, or us, to the obligation that these football clubs, for young kids, seem to demand. And I think spending that much time in such structured activity/classes, being told what to do and when to do it, is actually harmful for young children - they need to fill up their time and motivate themselves.
If he wants to swim/play tennis/play football in a club every day once he is ten, I'll support that as he's making the choice and taking on the commitment.
I'm afraid I take the view that makes me a good parent. Not a lazy one.
In fact, I tend toward the view that ferrying children around to classes at a very young age is more about the parents ticking a 'good parent' box that the child's interests.