In some way what you say is fine, but it is after all a Floating Pier (see pic) and I can just imagine all the old Codgers one finds on cruises marching down the walkway in anything but a calm sea - which we rarely get on our shores. On the last few cruises we have been on there has been a plethora of wheelchairs, walking frames and other walking aids. Many aged and infirm passengers seem to fill the cabins these days!
As for the Boudicca, she is still a fine ship, and at 40 is in the prime of her life, and a darn site better than some of the glitzy 3000 plus passenger cruise ships of today