Ettiquette re: take-backs and offering draws

Hi,

What's the ettiquette regarding take-backs? Someone just requested one in a Blitz game, where they blundered their Queen. To my mind, they made a mistake a paid the price. Allowing a take-back seems a bit wrong somehow; like if you make an error, you need to reap the consequences and learn and move on (and hopefully improve and not be so inclined to make the same mistake again).

I'm wondered though; what's the common view here on take-backs? Do you allow them? If so, under what conditions? I'm thinking, if someone is playing on a mobile device, and they intend to move a piece to a specific square, but their finger slips; I think then I'd allow a take-back, but how would you know that's what happened?

Thanks!

There is a confirm move feature so no excuses on mouse slips. Unless your playing a casual game with a friend or someone you know is a beginner, like a young child, then sure. Against strangers, never.

If it genuinely looks like a mouse-slip to me (e.g. white playing Kf1 when actually intending to castle) then I will allow a takeback if requested. But in your case, when an opponent just blunders a piece because they weren't paying attention, I would not allow a takeback. Ultimately, in either case, you don't have to allow them though, and you can even turn them off entirely from your preferences.

No takebacks, only rematches.

I allow takebacks for mouse or finger slips. I once had a mouseslip, the guy just didn't say anything, didn't even decline it. Beating him felt pretty good.

No take-backs. That way, there are no squabbles over perceived injustices. Also, people develop better if they are punished for their oversights.

Take backs for super obvious slips. I play on my phone so I know how easy it happens.

I pretty much always allow takebacks since people will usually only request if its a clear slip. People who don't allow takebacks are the worst.

I always allow take back, mistakes or not. I want to play someone at their absolute best, so I don't care about mistakes or not.
Beating them felt so great.
But yes, the common etiquette is that if it is a mouse-slips, allow that. If you don't, you just look like a jerk.
For those who think they should not allow mouse slip takeback, man, have you ever played bullets?

I allow all takeback requests except when it becomes too frequent. I view these games as educational, and if the person learns from the mistake, all the better.