Sight movement shouldn't be a common thing on any firearm. Depending on how new the firearm is you might want to take it back to your dealer and have them look at it.
The front sight may be a bit undersize
Do you know for certain it has moved, or did you simply notice it is of center.
The front sight should be in there extremely tight and should be difficult to move on purpose, and impossible to move on accident. If it has shifted from where you KNEW it was you should probably replace it.
If you looked at it noticed it's off center, I wouldn't worry about that as long as it shoots to point of aim. Sights often ship adjusted slightly off center, as long as the hit correctly from that position, no problem.
My wife's LC9 had a front sight that seemed like they installed it with Astroglide instead of Loctite. I sent it back to Ruger and they returned it in 4 days. They just tapped all the way through the top of the front sight and drove in a roll pin... Hilarious solution in my mind but it hasn't moved since and whoever lined it up prior to the tap got it precisely centered.
I sent two Shields back to the factory to have the front sight centered. Both were visually off to the naked eye. S&W didn't argue one bit, which tells me it was a known manufacturing issue.