Some games allow the players the choose controls or even disable button mashing in games. This is more common in PC games, but less common on consoles. The ability makes games accessible to people with disabilities who can’t reach a certain button or mash a button repeatedly. For Example, Uncharted 4 has an option to hold down a button instead of hitting it repeatedly. This was in response to one of their players who could not finish Uncharted 2 because his disability that slowed his reflexes. The option to turn off that feature in Uncharted 4 made the game playable for him. It shows that allowing something as simple as changing a few buttons in the control scheme can make a game more accessible.
Examples[]
League of Legends
League of Legends was a MOBA game whose designs originated from DOTA. But it really made great refinements from DOTA. One of them is that LOL customize players' input. In DOTA, different champions use different keys for their skills. It was considered as a champions' feature but it is really unfriendly to players. The customizable controls plays an important role in reducing the difficulties in control for players, which helps them a lot in attracting new players.