Morning snails.
Fran....Depends on what you use Norton for. Norton has other features too....backups, system check/fix, identity safe (password/login manager), etc.
I get it free with Comcast...so I use it. I also run other AV software once in a while to do "extra" checks for malware.
The thing is that often, the softwares don't play well with each other. Kinda depends. Malware bytes I run separately, for example while Norton is always running.
What you don't want to happen is to have both software thinking it "owns" the system and have them fight each other. I don't happen to use Kaspersky so I haven't tried it. If it has a stand-alone run, you can probably use it at the same time.
Checking for malware with two or more checkers is a good idea as one may catch what the other misses.