Even though someone will physically look like an adult, it doesn’t mean that they will feel like one. Consequently, how they look won’t match up with what is taking place inside them.
By being this way, their life is likely to be far harder than it would be otherwise. In fact, just about every day of their life could be one big struggle or it would be it if wasn’t for what other people do for them.
They could spend a lot of time feeling helpless and hopeless and not receive the support that they need. It could often be a struggle for them to get out of bed each day, with them lacking the energy and the drive to do anything.