I'm late 30s and I like it and wear similar (but vintage ones from the 80s/90s), I get lots of compliments on them.
Then again I don't have the typical 'mumsnet' style (most the things posted on here I would never wear in a million years) so if I like it I assume many hear will announce that it 'awful' with some unnecessary put down to make you feel bad for stepping out of the middle class norm.
Regardless of my (or anyones) opinion though life is really far too short to care if a judgemental person who isn't comfortable in themselves wants to poke fun at the fact you can be yourself and wear something more 'colourful' (although honestly it virtually never happens). If YOU like it then get it and rock it.