James Button

London

Consultant

Old enough to want to 'mislay' it follows young enough to lose it.

Though there is the benifit of locating it after it's been 'acquired' by somebody else -

That is if you can get the police to do anything within a couple of months.

And do remember that going to get it back yourself will probably get you locked up, and prosecuted by the police and associated authorities for harrassment assault of a minor, illegal search, kidnapping, and/or whatever else they can think of.
Not forgetting that the acquirer and their family/associates will then know the name and address of the phone owner -
so expect a bigger phone bill later.

And that's if you only grab the offender by the hand that has the phone in it.