Don't read this and start taking daily aspirin without talking to your doctor. Aspirin isn't like a vitamin, it can cause serious problems with daily usage.
Yes, but it's not a great idea to start that either without talking to your doctor first. There are sufficient potential risks with ongoing aspirin use that it's not a given that it will be a net benefit for you even though it is for a lot of people.
And when dietary issues or any number of other things causes gastric issues or any number of the other things on that list, there's a very real risk that nsaids can make them significantly worse for some patients.
You'll want to know if you're at risk before you start taking it regularly.
Now whether that actually does anything to cancer risk or if it's too low... Needs further research.