Hi,
Almost every trip I've taken to DLRP has just been me and DD (6). We fly into CDG in the morning. We get the VEA bus to DLRP as its very regular (every half hour or so daytime and early evening) and very easy - door to door to your hotel from your terminal.
We get the TGV back from DLRP to CDG - it gives us at least one more hour in the parks before we have to leave for the airport, and again, very easy - 10 minute journey on the TGV, and then the free internal train service within CDG to get to the right terminal for departure.
If I can help further, please just let me know,
Elaine