My girl didn't need to wear diaper at home during daytime since she's about 13 months. She's quite self-discipline & likes to be clean. She started to wear no diaper even when going out the whole day since she's about 22 months. She tells me she needs to "Wee wee" whenever she has the need. Hopefully, no "wee wee accident" so far when we go out. If no washroom available, she will "be patient" wait for me to bring her to the nearest one.