Because the market was extremely slow at the time I bought with DH in a different area, and then due to slow market NDN who were desperate to sell sold via a "we buy any house" type company, crashing the 'on paper' price of my house. So I reluctantly (like many) became a LL due to circumstances. I then decided I'd be a 'good' LL, and wouldn't just evict tenants from their home on a whim.
First tenants there for 4 years, when they gave notice, it was a really bad time to sell again, as the house was being upgraded my Welsh government/green energy scheme, which was great (everybody loves free stuff), but the contractors where terrible at communicating or giving any time frame, so any sale would just have collapsed or dragged, without any rental income in the mean time. So again I was a reluctant LL.
Current tenants there since. Great tenants, really don't deserve to loose their home, but rental restrictions are ramping up as are interest rates, so they my well do.
Life doesn't always follow a straightforward path for everyone, and that includes LL.