Drive? We do. That way if the field we want is full, move on to the next with no excuses about walking. You can talk on the way. ++
Wet? That's the best. We play in well watered fields because the sprinklers always seem to magically run right before we get there. You as the adult get to grumble while secretly enjoying getting dirty like you were a kid again. Your son will openly and joyously have a blast slipping and sliding while chasing the ball. Added benefit? The ball responds best on wet turf. ++
Dark? That puts a time limit to the play that cannot be argued. When it is too dark to see the ball, it's time to go home. No arguments, no time for anyone in the family to become bored and disgruntled. Just a short runout between father and son. ++
simple game can be done in any size grass (even the postage stamp grass areas in phoenix.) what you'll need? 4 cones and 1 appropriately sized ball. can be purchased at Target for under $20. Make 2 goals with the cones in a relatively small space. play one on one. Ball has to stay on the ground, if it goes airborne player loses possession. No out of bounds. No hands. First one to five wins. Best 2 of 3, 3 of 5, etc.
I see lots of pluses, but no minuses. Sounds to me like a perfect opportunity for bonding, healthy exercise, and beefing up your step count. If you don't want me to poke holes in your excuse you'll have to try harder.