Picking locks is a tradition in hacking. So morality is already off the table. Except if this is to save a cat - the offical reason for lockpicking in the 90s.

Now, the robot is hardly something you put together between dessert and coffee. Someone building this must have a live for hardware and lockpicking is just a pretext.

And think about the cats!

Does anyone even know about the classic MIT Guide to Lockpicking? Back in the day, it was so entertaining to come across this while in grad school and enjoying reading it instead of working on actual work.

We are made to be technical tinkerers, playing with tech, seeing if sending that input to that program will crash it. I see it not as a moral issue but as a technical skill, to understand how to work with systems, explore what doesn't work. That way you gain skills in how to make things work better.