I'm finding it awkward to discuss.
As a general principle, if something is awkward to discuss with someone, there will be a reason. Maybe society considers it taboo, or there is something they know and think it is to their advantage for you not to know.
It would make a lot of sense to find out more and work out for yourself what that might be.
Then you can decide what you want to do.
If you are the single beneficiary and the surviving party, you can do a variation to make the will say whatever you like. This is particularly useful for tax advantages.
You mostly need to be sure that what happens to your estate if you go ahead is what you want. For example, if any beneficiary is a minor, they cannot give consent to changing a will, so that will cannot be changed. However, people do tend to do mirror wills, if you want that change to your will, he is likely to want it for his, too.