DH and I rarely wear branded or designer clothes, so I feel the same should apply to the DC. My oldest is almost 15, so has his own sense of style now and likes certain things, which include Top Man jeans (very skinny, sprayed on looking ones!) and converse trainers. These things cost more than what I would usually buy, so he is aware the numbr of pairs he can have is llimited or should be bought with his own money or as Birthday/Christmas presents. DS is fine with this.
However, my friend recently commented that her DD has 7 pairs of Converse and they usually buy her branded clothes as her normal clothing, things like a North Face gilet which cost around £90, for example. This friend wears a lot of branded and designer clothes herself, as does her DH, which is fine for them and their decision. However, she made a point of implying that I was being unfair to my DS by not supplying him with oodles of branded clothing.
Am I odd? We had similar when I was growing up, although that was due to finances, our decisions are not. She did make me feel a bit mean, but I offered to treat DS to a new pair of converse as he had been extra helpful around the house recently and he said he didn't need any, he liked the ones he had!