You can actually Grow, get stronger and more powerful without ever even lifting a Dumbbell or barbell. A bit of an imagination, you can work chest, back, shoulders, bi’s n tr’s, glutes, hammies, legs and the list can go on n on without “needing” to get to a gym.
Check out youtube and there are lean cut and ripped dudes who have never stepped into a gym. There are also Large Tanks doing the same thing if thats your goal.
And there are plenty of ways to make the “same” exercise a little bit harder or Heaps harder. Bonus is your not waiting around for a free bench in a gym getting cold 