No! Fast pitch softball is a demanding sport. You have to be quick, tough, but more importantly, you have to be smart. Softball and Baseball are some of the most complicated games played today. Strategy is a huge part of the game. The more you know, the better you will play.
Also, there are also plenty of men's fastpitch softball leagues.
You can play softball as long as you like just not a grandma. There is pro softball, so you can play softball as long as you like.
Usually about 60-75 mph.