I use to sew a number of toddler and adolescent clothes in 2013. I don’t know why I stopped but it’s a great method of using your scrap fabric.
Little Lizard King, makes an Amsterdam (pattern name) dress for adults and a romper and dress for 3 months to 4T. I decided to make a few for my colleague who’s first daughter is on the way
LLK offers patters in PDF and projector format with instructions.