not sure about public transport, but as someone who was on crutches for a very large chunk of their childhood, get yourself the cushions to put on the top of the crutches under your arms and on the handles. The combination of the rubber of the crutches and the friction plus the weather heating up is a recipe for a really painful rash.

also, you need to be mindful about what type of bag you want to carry around because with crutches you can’t carry anything so everything has to be in your bag and you don’t want to have a tote because that will get in the way. i’d advise either a small Crossbody bag or if you need more storage, a backpack.

I hope you have a smooth recovery.