You would be amazed! Cannabis is extremely resilient! I have seen some plants here that have been atrociously tortured by their abusive parents...1000w 6" from seedlings, backyard dirt for soil, full strength feeding daily, feeding full strength nutes in Miracle Grow, 20 seedlings with some in the same pot going into a small grow area, I have even seen posts asking how much of their own feces and urine they should use!
Some of it is HILARIOUS! Some are so sad they make you want to call the cannabis abuse hotline on their parents. One last piece of wisdom...NOTHING kills more plants than their parents 'loving them to death'