It says a lot about the culture of games that 'skip cutscene' is standard but 'skip this challenge' is not.

@kevspace Most instances of the latter are a lower difficulty level, which I think is the best way of doing it - it makes the challenge trivial but still has you play through it. An alternate idea would be the Super Guide in modern Marios, where the level is beaten for you (although it skips special collectibles and ignores secrets).

@MeimuHakurei it's better than nothing but still does not help many who physically or mentally cannot perfom all the tasks required.

A good but not perfect compromise is the 'Mellow Mode' in Yoshi's Woolly World, which lets you retain control of an enhanced near-invincible flying Yoshi who can also have extra buffs or shields added with badges you can buy. Making it the first Mario branded platform game my girlfriend (who is not disabled) could ever beat. Which is why she bought it at all.

@kevspace @MeimuHakurei Baldur's Gate and Icewind Dale Enhanched edition have the "Story Mode" which makes all your characters invulnerable and do very high damage, essentially letting you skip the combat portions. Afaik you can't die in NWN on very easy but I don't know for sure.