My dd is obsessed with broccoli at the moment, it hasn't caused any problems but she might fart a bit more. She eats a lot of 'farty' foods though so could be anything- just try it and you'll find out!

FWIW my mchn pressured us to start solids at 5 months too, but that was because she was 'too small' so I think some mchn just like babies to start early and come up with any excuse. Made no difference to her weight of course lol.

We did a mixture of purées and blw, but dd quickly decided she wouldn't be spoonfed and mostly eats everything with her hands(whether it's actually doable or not) it's funny watching them try and eat yoghurt etc with hands!

I wouldn't bother with rice cereal, we used it a handful of times only.