Even for that it's not safe if anyone can bypass it with a $5 trick. It's definitely a thumb idea
Nonetheless, we still lock our doors and thieves often break in, even though picking the lock is both safer and less likely to arouse suspicion.
Your argument makes sense, but we humans aren't really rational
On the rationality of having locks when criminals can very easily break a window, the old saying that locks keep honest people out rings true. Locks do serve a purpose even if they do very little to slow criminals down. To bring the analogy full circle fingerprint readers always seemed like windows to me in how easy they are to bypass, luckily they're more of a luxury than a necessity. :-)
That is why they aren't carried around any more.
And that is not taking into account that most locks can be defeated without lockpicks, a steel ruler will do.
It's just sad when people that don't know a bit about the trade boast about "regulations" and how they are relevant. They are not.
Four hours have gone by without comment on this and I feel the offense should be recognized.