Is it bad to have cameras using a static IP address?

I am about to move in a new house, and I would like to install some security cameras.

The contractor told me that in order for me to check the videos recorded by the cameras in real time when I am away I'll need to have a static IP address.

Are there problems with it? Is it less secure?

I am not a billionaire or famous so it is unlikely there will be targeted attacks. On the other hand it would be my home network and it'll happen that I'll input my bank credentials sooner or later, so I want it to be safe.