MMA Retirement

One thing I will never understand is MMA retirement. I have seen so many MMA retirement announcements and then they are fighting again. At this point I don’t believe when anyone retires. Conor McGregor retired and that lasted how long?

I really don’t get it. A fighter can lose consecutively four, five fights and doesn’t retire. Holly Homes loses to Amanda Nunes and is asked to retire? Why is that?