If careful muscle exercise in the gym will affect your growth, it is even more unnecessary. Because adults practicing muscles will not affect their growth, what's more, college students have hardly grown up. Some universities have gyms, and students can exercise at any time after paying fees.
Even teenagers (about 12 to 18 years old) need moderate muscle training, which is beneficial to the growth and development of teenagers. Generally speaking, it is enough to carry no more than half of your own weight.