You are right in that these abusers should never get away with abusing but so many do.
It takes a great deal of courage to report an abuser.
It is particularly difficult if the victim has no support.
In years gone by victims were not often believed and so a lot of abusers have actually been reported but no action was taken.
I think there is more support now but there are still families who live in denial and ostracise victims if they speak out.
I would never judge someone for not reporting abuse. They could be so damaged as to have blanked the abuse out. They might be living in terrible fear.
There are lots of reasons why victims don’t report.
Some witnesses who might have corroborated the victim’s statement, particularly witnesses who were also abused, might refuse to give evidence.
Some under age victims were groomed so thoroughly that they practically hypnotised into believing that they were willing participants.
It is such a complex subject and I so wish there were more services to take victims through the process from start to finish.
The OP has been extremely brave and we can be grateful to her for putting herself through this process.
I hope OP remembers throughout this that she had done something wonderful which will benefit all of us.
It can be very hard to convict but whatever the outcome OP should hold her head high.
Good luck with all this OP you are wonderful.