No one is taking advice from a webcomic but I might as well say in case this sticks to your subconscious. Teething has nothing to do with if a baby is ready for solids :D
TLDR; talk to pediatrician before starting solids and this babies fine, she’s 6 months old and you can start solids at 4-6 months. The stuff below is just yapping cause I think it’s interesting
It just depends on gut development and the signs are more motor. Being able to life your head, being able to sit up for a duration of a meal (15-20 minutes). A BIG sign is the baby picking stuff up and putting it to their mouth. They’re subconsciously know they can start solids AHHH LITTLE HUMANS ARE SO COOL!!!! It makes complete sense that the misconception that teething = ready for solids because they do happen around the same time but teething can happen after (and sometimes way before) you’re ready for solids. The reason this is significant is because you should be introducing your baby to as many common allergens as early as possible (not too early, of course but immediately when they can start solids unless otherwise advised) this is because this can prevent allergies by 81%!!! Anyways, life is so cool and interesting, have a nice day