That experience will haunt them even while they're sleeping lol.
The experience of cashing out is not fixed; you may be happy you cashed out early, or you may regret it.
Personally I think you will regret less cashing out early and not losing all than not cashing out at all and losing everything.
So long as a gambling platform is showing your cashout option that's more than the staked amount, take it out for Christ sake, the next one to be played on the list might be the dead of the ticket while leaving you in regretted attitude.
Be sure to always make sure you cashout early no matter the amount while staying happy doing that regularly, that's a top tier gambling attitude someone should exhibit.
You are absolutely right but this still falls back to the gambler and his own decision, there are gamblers who would prefer to ride a game to the death than cashout and later realize they cashed out to early or that they shouldn't have taken the cash out at all as they would have won the game and walked away with the total full potential win amount.
I have a friend who is exactly like this, he would usually tell me, "what is the essence of betting in the first place if you don't have the balls strong enough to handle lose of money", he has never and said he would never accept a cashout offer because according to him, he is always very sure about his bets and if at the end, he doesn't win, so be it.
So the idea of always cashing out when the offer is made available by the casino is something some gamblers will definitely accept, but others won't, it all depends on our betting strategies.