"Should a person go for the rank of Team Leader If they don't have a team?
My opinion I would say yes. The reason is quite simple, by becoming a Team Leader you get CSAs thus a start of a team, some might be active already. You can then start sending them support, which is good pratice before you you start recieving PSAs. If you don't have answers for your downline, I am sure you can find them easy enough.