They are what they are. Lots of good, lots of bad, an awful lot of in-between.
If you are blessed with a long life, you will get to see life from every stage, an infant, a toddler, a child, a teenager, an adult, an elderly person, etc. We have no control over the stage, so your job is to live whatever stage you’re at to the fullest.
We have a 17 y.o. foster-son from Russia living with us. He laments every day that he was considered a man in Russia (I sort of doubt it) and could buy vodka. Here, he can’t buy vodka. I tell him he should just enjoy his teenage years, where most of his responsibilities are school-related. He will be 21 soon enough, B”H.