A:Answer Hello,
Yes. You can have just a tablet. I know someone who has only a tablet and it is enough for him.
However a tablet does not have the storage space (disc space, hard drive space) of today's laptops. It may also have less RAM, lower CPU speed than the standard laptops.
Since you say you don't use your laptop a lot, IE work at home, etc, the tablet may be just fine for you. If you should get the Samsung Tablet S6, I suggest you purchase the 256 GB. That way you should hopefully have a comfortable amount of storage space. Your can connect wirelessly to your router and use your tablet anywhere in your home depending on the distance from your router.
I hope this helps.