A lot of it starts to get them pretty young. Like 10-12. Its embedded in video game content a lot. The ages are getting younger and younger as kids tend to be influenced by other kids a bit older than them. So it trickles down that way. Altho i see early teens as kids too so i was talking about them too when i said that. A lot of it comes from socializing with other kids that have been influenced by it too.
I use a towel once before i wash it. I dry my bootyhole with it im not gonna reuse that and rub it on my face no matter how thoroughly ive scrubbed it. All you need is 7 cheap towels and do laundry once a week.
Bedding depends, but on average like every 2-3 weeks.