Hi!
First of all,you are NOT old,hello,I mean,we are going to work until we are 70 years old,I even want to work longer than that,maybe until I am 75. So starting your education like 40 years before you retire,is NOT old. Besides,there are many people who change their career when they are 45 or 50,what about them? They also have to start from scratch,and their former work experience,does not count much then.
And listening to parents,does not have anything to say here. I don't have one parent,many are divorsed,and the other parent struggled to keep at least some food on my table,so I can have that and clean clothes,but didn't get anything more than that.
Because that kind of live,I also "fel out" right after high-school,and I am also soon to be 25. Will be 26 when I start my studies.However,when I look back at it,I am happy that I didn't had the chance to study 5 years earlier,strangely enough,because I would have chosed something completely different from what I want to study now. And I didn't had any clue what kind of unis to choose,and what was good,what's bad,etc.
So don't worry,better to start on something good now,instead of anything,5 years earlier. Besides, this shows that people like you,me,and others in the same situation are "fighters",and don't give up,that's a lot better than those little ones,lol,who have been fed with silver spoon by their parents,and have everything set for them from day 1. We know how the real world is,but don't give up,that shows something about your personality,and this will also show in a job situation. We will wish for a challenge at the work,whilst those silver-spoon fed little ones,are gonna cry if they get a challenging job,lol