Practicing non-attachment is like asking “how do I stop holding this cup?”.
The simple answer is, you put it down.
And so it is with attachments.
Keep putting them down and eventually, you’ll stop picking them up.
Contemplate how you pick them up, rather than why. It is this area of exploration that will prove more fruitful in your non-attachment endeavours.
How you pick up the cup is the same way you put it down, but in reverse.