Method of childhood reading my parents used is authoritative, maintained high behavioral expectations, set limits and allowed natural consequences, and explained why certain rules were important rather than citing their authority on why I should obey.
In adulthood, a person and their partner would be used to being attached to one another, that if one decide to have a kid, they're expectations would be let down once they actually take care of a baby. There would be less intimacy, and less contact. The baby would grow more on one parents than the other trough nurture. Young adults tend to go through this, and even older couples who unexpectedly had a baby at an older age.
I feel like I began this stage at the age of 16 because that's when I started to realize how hard it is to to be an adult and look after yourself. I think the biggest hurdle was realizing you can't rely on anyone and it's just going to be you picking yourself up after a hard day.
I'm not old enough to have intimacy so right now I'm in isolation. But I believe intimacy is when you're comfortable to be intimate with another person and getting married and doing all that stuff that should be allowed after marriage.
I am at need for self-actualization. I'm at this point because I feel completely aware of everything that I need and I'm already on a path to a great future and I have back up plans incase my actual goals don't work out. Also because I feel like I have a healthy personality that allows me to grow personally.