hi there
i think 12 is a bit young to be getting acrylic or gel on there nails as like some people have said, theyre not going to want to look after them properly! maybe for like a couple of days, but when the novelty wears off, they start looking for bits to pick off
ive had a few mums come to me for nail treatments and theyre young or teenage daughter has tagged along and they often ask their mums if they can get the same as what mums getting lol! i find this flattering that they want to look like mum, so i keep stick on nails, you know the ones with the wee sticky pads and you pop them on, and they last 2 days or so!
I will also pop some little gems etc on them or do some free hand nail art to keep them sweet! And of course explaining to them that acrylic can ruin nails if not properly looked after, and to see how they like the falsies first!!
When mums come back, they will say, the falsies only lasted a day lol! she got bored and took them off!
so i think it just depends on your clients, if they persist in their daughters having acrylic nails on, then its at your discretion to do them, and obv advise on maintence and upkeep. you can always say no.
hope this helps, but the falsies are a fab way of pretending that you have nails lol x