I can’t keep my zipper up every single time I walk it 3 people have pointed it out to me plz help me
Here are two possible reasons for this issue:
Physical: The zipper does not have a locking feature. Zipper sliders may have various types of self-locking features, such as a small prong on the pull-tab that engages the elements (teeth) when the tab is in the close position. Perhaps the lock on one or more garments is broken. The remedy is to replace the slider or the whole zipper.
Psychological: For some reason, you're forgetting to close the zipper. Perhaps a simple reminder, such as putting a small burr on the pull tab that you'd feel when unzipping, could help you remember.
This may help:
"Fly won't stay up? Attach a key ring to the zipper and hang it over the button." (https://i.stack.imgur.com/8dHYY.jpg)