Of course it its! the options available include: trailer bikes, child seats, tandems, using their own bikes, cargo bikes, trikes and more.
Look out for the comprehensive guide in next month's issue of 'Cycle' (Aug/Sept 2012) or buy 'The CTC Guide to Family Cycling' edited by Dan Joyce. Available to order from CTC for £9.99 including p&p. Tel 0844 736 8450 with a credit or debit card number.