to expect my 11 yo to take responsibility for himself?

[abstractLucas]

The form and deposit for his scout holiday has been in the middle of the kitchen table since he gave us it last Monday. He sits at the table every meal, does homework there etc etc, and we told him it was his responsibility to take the form and the cash to Scouts to hand in, otherwise (rare threat from DH) " you won't go ".
The bugger's gone and left it here.
His birthday is March, so it's not like he's 'just' eleven, and he had the envelope in his hand an hour before he left, but put it back on the table instead of sticking it in his pocket. But I want him to go on the stupid camp - it's not til the summer but a few nights away would be fun for him (PGL) as well as the rest of us (me, DH, 12yo bro and 10yo sister).
Was this expecting too much of him, to remember to take it? Did your offspring take responsibility for this sort of thing at that age?
Arghhhh!
Someone tell me what to do!

My 11 year old would need reminding constantly, he's insanely scatterbrained.

Oh all scatterbrained here so we all try to look out for each other. It's what you do. He's completely normal op.
May be a western problem. Glad we have it then.

My 11 year old (nearly 12) DS1 wouldn't remember to hand in the money even if he did have it with him but DS2 (9) would easily. I used to think that it could be trained into DS1 but now I am starting to doubt it. I don't do everything for him. Lots of things he has to deal with the consequences but other than being disappointed nothing changes. It's not wilful so I just remind and encourage and help him emotionally to deal with the consequences and sometimes act the good fairy backstop

I do the same thing as an adult.

I also have ADHD, so reminders and alarms will always be part of my life.

Sometimes reminders are helpful. But putting something on a table where it eventually becomes part of the scenery, is not helping anyone. When you give him something, have him put it in his book bag or back pack right away.

Does he have a cell phone yet? He can make calender alerts to remind him about tasks and appointments.

Assuming he's NT (and even if he's not) I'd let him learn from the consequences of his actions in a constructive manner. I like ILovePud's idea. Make him figure out an alternate way to get it done. If he's truly forgetful he'll need these problem solving skills, if he's not, it's always important to know how to correct a mistake.

I know for me, being yelled at and having extreme consequences like missing camp or something didn't help my organizational skills. It just made me more anxious about everything.

I was dreadfully forgetful at his age and for years afterwards. My mother was of your opinion, that I should take responsability, but I really suffered so much, I was never like that with my dd.