Wills are unique. These documents only come alive when the maker of the Will has passed away. Hence these documents lives beyond you.
Whatever drafted on the Will has to be accurate. Once the maker of the Will has passed away, the Executor of the Will would have to decipher what the maker wishes. So, the Will has to be drafted in clear and understandable language. Any ambiguity may lead to unwanted consequences (for example; an ambiguous clause may be declared too vague, and the asset which you wish to donate to a specific beneficiary may not end up with that beneficiary after all).
It is strongly advised that you engage a Solicitor to draft a Will. Inform the Solicitor of all your tangible assets. Inform the Solicitor which asset shall go to who, upon your demise. Be clear with the Solicitor.
It is perhaps best not to have an asset divided to too many people (for example Landed properties should not be divided to too many people). One must also consider if the one asset is divided to too many people, when this beneficiary themselves pass away (and if they pass away without a Will) then your legacy would be in conflict and sometimes in chaos.
In some Wills, the maker gives a House to 5 children. When the maker dies, all 5 Children will be registered as co-owner. But when one of the child themselves passes away AND pass away without a Will; that is where your legacy faces problems. The 3rd generation will face much issues.
Anyway, this is merely an example. Be sure you think beyond the coming generation when deciding who benefits from your Will. It would be beneficial if you ponder of the 3rd generation too.