Originally Posted by
747_not_777
You need Silver or Gold status (or, equivalent with OW, I believe - tho someone will I am sure correct me) to be able to select seats (normally).
Or be booked in the top booking class(es) in each cabin: J or C if flying Club, W if flying WT+, or Y if flying in economy.
Or, seeing as there is a reference to "son", be flying with an infant.
Or be a BA Bronze or OW Ruby, within 7 days of the flight.
More details:
http://www.britishairways.com/travel...y/public/en_gb