Adult children

I some times feel that having an adult child can be really hard. While he has all the ages for anything from marriage to the vote (UK laws) He is not able to do so many day to day things. I get such mixed emotions of where and how to get him to gain skills. Where is the line between his choice and my wish for him to gain in life skills and independence?
WOW! I think that it can be harder now than when he was a child.
What’s your views? How do you feel an adult should progress? I would love to hear from you.
My son always seems keen at first and then after a few weeks we go down hill, not back to the beginning but not far off.
To gain a balance is hard work. How do you cope? Drop me a line I would love to know your views.