If I had kids I would never dream of spending that sort of money on them for clothes. Primark and supermarket stuff until they at least hit their teens.
Personally I do wear designer stuff every now and then, I like Lacoste polo's and jumpers and Henri Lloyd t-shirts. Fred Perry polo's are absolutely terrible quality and they feel like an old towel after one wash. I do actually like their stuff but it doesn't last at all. I wear a fair bit of Next stuff.
Brands in general though, I don't care, It's only a name, The only thing I make sure I buy is PG Tips decaf, Can't stand any other decaf tea brands as they all taste like crap.