That made me laugh!

- yes that hits the nail on the head - buying groceries looking like being on the way to a night club - or maybe being 21 but dressed like 30 - or 14... This really is what bothered me a lot I guess about some transpeople I knew. Of course it is however fun to dress like a 21 year old on the way to the night club - which is why I did that at times - and then went to the night club

- ok, I was 24 at that time, but hey - 3 years off, a MtF can pull that off, we are usually thought of being younger anyways from the looks.
Dress always according to age, situation and I guess to a degree your persona. A more shy person would not want to go for ultra short mini skirt and high heels no matter a trans or cis past
But I guess that is sometimes a learning process - after all we do lack the experience of actually being 14 and dress like a 14 year old girl and then growing out of that and gain insight into what IS appropriate. But I found that can be learned quite fast when opening ones personal perception and just take a look and some sane thinking