Halloween Dilemma

People of mibba, I know it doesn't seem like a big deal and I don't want anyone to think that I'm being a drama queen but I just need to know...am I too old for trick or treating?
I mean I'm 16 and I just want to know; How old is too old wen it comes to trick or treating?
I'd always planed to stop at 17 but am I already to old?
I just want everyone's honest opinion.

Thanks
Amelia~

P.S. Just FYI this information will also help me decide what to dress up as for Halloween. Ether a vampire slayer or a witch.