While it’s common for kids to love bread, a straight up bread-based diet is inherently unbalanced and may not be a good fit for a toddler for a variety of reasons.

First, bread can cause allergies (not to be confused with celiac disease). Second - bread contains a lot of starch, which might be heavy on their digestive system. Third - the amino acid composition of wheat proteins is not perfect, lacking lysine, tryptophane, valine, and often times histidine, too

All of that is hard to solve - I mean, you can compensate for amino acid deficiencies or increase protein content by introducing alternative flours, like buckwheat or lentil or amaranth, but it introduces its own issues and doesn’t solve it in whole.

Aside from that, be mindful that it is possible for a toddler to choke on bread.

With all that said, you can add bread to your toddler’s diet - but I can’t recommend turning it from treat to staple just yet, and making the bread “babyproof” is essentially making it a non-bread.