My lock is a kryptonite that I’ve seen broken by a piece of soda can on a lockpicking channel. It’s perfectly fine for my purposes.

I bought my bike second hand at a bicycle co-op, and they had u-locks and kali(?) basic helmets for sale cheaper than they bought them for, because they want everyone to afford safety.

Shout out to Bradley Street Bicycle Co-op. I wish I needed more bikes.