Illustrative example
An unmarried couple bought a flat together five years ago, both on the title. They have separated. One has been paying the mortgage since and tells the other they must move out because they are the one paying.
The right to occupy comes from the beneficial interest itself, not from any agreement and not from who pays: each of them is both trustee and beneficiary, and neither is the other's licensee. The fact the right turns on is whether the purposes of the trust include making the land available for occupation - which, where a couple bought a place to live in together, they plainly did. Subsection (2) then removes the right only where the land is unavailable or unsuitable for that particular person.
They agree one will stay for six months while the other finds somewhere, with the mortgage and outgoings shared in proportion to their agreed shares, and the flat put on the market at the end of that period.