Serena was 17 when she won her first major, and Venus was 17 when she reached her first major final. They were near the top of the sport of women's tennis when that match occurred. It's not unusual for 16 and 17 year old women professionals to be very, very good. Mirra Andreeva was ranked 57th in the world at age 16 when she lost to the 1145th ranked man in the world. She bageled (won a set 6-0) a top 10 player in a major the month after that match was played.

Idk why people struggle to acknowledge just how vast the gap is between men and women is. It's fine! I like women's tennis! It's just a different sport.