[NSFW} Does being exposed to sexual conduct as a child spill over into adult life?

I was having a discussion with a group of people and some in the group (we were all acquaintances) spoke of how they were exposed to adult sexual conduct by family members, two by male relatives and one by his aunt. One man said it took him 20 years to forgive his uncle by marriage and lay that demon to rest. If a person was introduced to sexual activity by a family member when they were young like 7yr or earlier in your opinion do you believe is it easier to bury or forget what had happened over time or is it worse the closer it happens to adulthood like in your teens? Or would a teen be better at compartmentalizing the experience being more mature? I can see it is not impossible for a someone to forgive the person who did the acts with them but does or could sexual acts as an adult with partners or spouses make it harder or impossible to ever enjoy sex with those with their mates because it is a trigger to bad memories they make have put in the back of their mind?*

*Disclaimer: Not all details provided, devitalized to be compatible with those of high emotion.