It doesn't matter how old you are.
I don't/wouldn't wear Sketchers. I wear converse, Adidas (but not the Stan Smiths/Superstar ones) or at a push Air Max, but only if I really like the colour way. The Reebok Club C 85 come in nice colours as well.
I'm currently trying to convince myself that the Ivy Park Adidas boosts are too much money, but I can't find a pair of pink trainers I like more at the minute.
Have a look on ASOS, you can just search trainers and then filter by size and theres quite a big selection to give you and idea of something you like. Trainers are a Pandora's Box!