And generally pretty useless. Our previous boat had a flat section projecting out below the stern fender. Our current boat has an 'ear' stuck out either side at the stern. Our neighbours boat has two large steps let in either side.
But, the problem is getting your foot in or onto them, which are bound to be slippery, at the same time trying to get you hand into something to pull yourself up.
Our other neighbour, considerably younger than me, decided to have a swim in the river last summer. He found it impossible to pull hi self out. He now has a folded emergency ladder tied to his stern rail that he can reach easily.