
According to today's Metro (free UK newspaper), five signs that you are turning into your parents are (adjusted slightly for intercontinental clarity):
1) Tutting when you read about drunken 18-30 holidaymakers
2) Buying expensive ready-meals instead of cheap Chicken Kievs.
3) Working out how much your pension is worth
4) going to the toilet with the door open
5) Appreciating the attraction of a people-carrier or a similarly spacious vehicle.
I don't tut when I read about drunken antics, but I do feel vaguely disapproving about them. Largely because drunk people are annoying. I do buy the more expensive versions of some things, but largely I do my own cooking, so that one doesn't count. I was worried about pensions for a while before my current job I don't bother closing the toilet door unless Ed's in the house I once wanted to buy a mini-bus, because it would be handy for moving several of my (non-driving) friends about at once.
Apparently I've been an adult since I was, ooh, 12.
I've definitely been noticing my slow slide into responsible adulthood, partially caused by being forced to look after other people, but also partially always just there, lurking in my rational forebrain. I've watched the amount of irrational, emotional behaviour I engage in slowly drop over the last few years, occasionally worrying that I might be losing something, but generally not too worried about the changes, as I still largely feel like 'me'. I didn't want to feel like I was making a move into adulthood when I wasn't ready, but on the other hand, if this was a natural process then it didn't bother me that I was slowly becoming someone else.
I caught an interesting program on age and brains the other day, where they were MRI scanning a 17 year oldgenius - went to university at 13, graduated at 15, and so on. When asked intellectual questions, his brain lit up like an adult brain - all forebrain, making connections and putting pieces together. Asking him emotional questions ("identify the emotion this person is expressing") lit his brain up like a standard teenager's, centered in the Amygdala, emotions flaring off in all directions. Apparently as we grow older the decision making capabilities are slowly subsumed from the emotional centres into the intellectual ones, with intellectual experience taking over from our emotional assumptions, the scans of different age groups undergoing the same tasks were fascinating.
There's something comforting about knowing that the path you're taking is one that nearly everyone walks, that the changes you're undergoing aren't strange ones inflicted on you, but perfectly normal. It's like realising that everyone else is going through puberty too, somehow it all becomes a little less worrying.