Maybe (just a theory)...
Mini-SPOILER AHEAD.. SKIP IF YOU HAVEN'T WATCHED YET.
In the film, it is portrayed that the system of God and worship is highly forbidden in 2898 AD. Also, as per today, the people are turning more to the western culture.
Maybe in future, there will be almost complete westernisation (except for some truly religious people); and may be parents name their child as per the culture.
Some of it can be seen today, parents naming their child — Tina, Tony, Tiger, Ronnie, etc, etc...
Just a theory.