Beginner puzzles

Is there a way to start with the easiest puzzles rather than those for entry level 1500?
Am thinking of juniors (7 to 9, say) who need a little success to fuel their enthusiasm.
I imagine they would have to fail many puzzles to get down to a 300-400 puzzle rating.
Do the most basic puzzles exist on Lichess, eg capturing an unprotected piece?

You can solve puzzles in anonymous mode. Guest user hasn't rating in puzzle solving and Lichess offers absolutely random puzzles. Some of them have 1000-1300 rating.

Thanks for the reply, Nikita.
I thought I read somewhere that puzzles were graded, ie they became harder if you solved them and easier if you failed.
Probably my mistake. Thanks again.

This has been requested a bunch of times. Perhaps introduce an "unrated" ultra easy option, or hand-picked puzzles for beginners and children.

One step further: make it a default setting when "Kid mode" is on.