It's for the children, they still love it!
http://www.seagulls.co.uk/news/article/brighton-and-hove-albion-easter-tours-and-open-day-have-you-booked-1474937.aspx
There will be no spectator facilities around the pitches, hence U21/DS games will still also be played elswhere (Culver Road, Amex). I guess that would rule out watching the team train, unless you have a specific invite.