Exactly, couldn't agree more! TBF on MN when someone mentions a DCs GP babysitting and they're in their 50s posters saying how exhausting it is for them etc and the OPs are expecting too much, I don't know any 50 yos in RL who seem old or too tired to look after young DCs and they definitely party hard still.
If it looks good on you then why not, it's not like you're going for a see-through outfit with just bra and pants on (which looks awful on a 20 yo also).
I am a toned-ish size 12, flat tummy, toned legs and big boobs and that sort of outfit really suits me so to the poster suggesting it's only for skinny people I think you're wrong. It's obviously a bit revealing on the boobs if they are on the bigger side but still looks fine and not tarty.