Big Girl Car Seat

My infant car seat is almost too small for me now. Mommy and Daddy took me to Babies 'R Us this afternoon to check out convertible car seats. The one on the left is very spacious. Daddy thinks it doesn't give me enough head support. But Mommy thinks my intellectual development would be stunted with the one on the right since I can't see anything to left or right and will be facing backwards into the seat. I'm worried she'll tape flashcards to the back of the seat or something.