When my grandfather was born in the 1880's, the world population was around 1.5bn.
When my father was born in the 1930's, the population was about 2bn.
When I was born in the 1960's, the population was around 3.5bn.
Today the population is around 8.3bn.

The well respected statistician Hans Rosling famously calculated the expected population for the year 2050 and predicted it would reach about 11bn, where it would become stable as most of the current population growth is due to reductions in mortality.

However, from a commercial objective, if the population doesn't continue to increase after 2050, companies can't continue their growth indefinitely and we don't get to populate other planets at scale.