The concept of separate delivery of people and goods into space, Ilon Mask and his company SpaceX borrowed from the Russians.
“Initially, the Russians relied on separate launches of space cargo and manned spacecraft. The Americans are now applying the same principle. Musk does this with an eye to the future, planning to take tourists into space, but here the Russians were the first to send their Soyuz aboard Dennis Tito in 2001, “.
Recall, on May 31, SpaceX sent a Crew Dragon ship with crew on board to the ISS. Over the past nine years, this is the first manned space flight in the United States.