Here it depends on the stack. If you have over 20 blinds you should wait for others to go all in, it is important for you to get in the prize pool.
You might get caught when raising all in ( scenario , if nobody raised , you are up to act, and you go all in with 55, 66, 77 ( dealer , small blind) you might get called by the SM , BB with cards like k6, k7, A2, A3. you will see this type of play on pokerstars
.. you might get out of the tournament if you find this type of player .
So stay safe.