Is the wear/pitting on the axles normal or a cause for concern? I had planned to replace the bearings and seals. Now wondering if axles need work also. Opinions and advice would be appreciated. First 2 pictures are the right axle and the last 2 the left.

https://www.dropbox.com/sc/xqjq56rxbth9zyr/AAAG4PIRIvptQ9BMecdphDNxa