I would like to say. Name one ADC that doesn't have these weaknesses? Syndra/lux/zed one shot all adcs. Caitlyn, along with few other adcs actually have a dash to avoid the initial lockdown though. Every adc can be shut down in lane. Shut down a draven and watch him tilt to oblivion. Shut down a vayne and watch her shoot wet noodles at your team getting one shot repeatedly before she even catches a glimpse of late game. Caitlyn gets outscaled by maybe... 3 adcs. Vayne, Tristana, and Twitch. She happens to be a hard lane counter to all 3. So a good caitlyn will avoid being outscaled by just stomping lane. Her net cd... it's a gap closer/escape tool/cc/burst. The fact its cd is that low is crazy enough as is. Play ANY single adc in the entirety of league and lemme know how you feel about cc lock... caitlyn can trap, net to peel for herself unlike many other adcs. But at the end of the day, cc will shut any squishy adc down. Runs out of mana quickly... I mean... barely. as long as you aren't spamming rank 1 peacemakers you should be fine, her base regen is pretty nice and her traps cost next to nothing. That said, take any adc that has poke mechanics and we could say the same thing. Heck if i spam auto/tumble/condemn combo with vayne in lane ill run outta mana too. Caitlyn is one of the few ADC's who can do well vs sustain lanes. She has the tools to auto attack poke without receiving any punishment. Take a shorter range carry that has to trade damage and watch it get healed back up. Caitlyn can give damage without trading it, so even if it gets healed up she hasn't really lost anything. She actually deals really well with sustain lanes compared to other adcs. Not to mention she has one of the highest burst combos of any adc if you land your full combo. Pair that with a support that has cc, and no amount of healing is really gonna matter... Hmm she has 3 traps at rank 1 spell 5 at max rank, a net, possible cleanse/qss, flash, heal. just as many safety tools if not more then the next adc. I'm pretty sure you engage a varus without a flash and he's going to cry, since that happens to be his ONLY safety tool.
I feel these aren't even Caitlyn specific weaknesses, let alone weaknesses at all. If I had to name a weakness for Cait, I'd say its tanks. Caitlyn is inherently reliant on burst and crits. when a lot of defenses are built, her strengths become less effective. It's one of the main reasons I don't play much Caitlyn. You can stomp lane, then spend 3 hours (obviously exaggerating) trying to kill their front line. Even that though, isnt a complete weakness, because of her range she is able to stay far enough back while still whittling those tanks down. Making her extremely hard to punish in teamfights if she is on her game. I think it should go back to Caitlyn having to lay a single trap. or... mayyyybe 2. But having 5 traps lined across the front of your turret as she sieges away from an already difficult distance to reach, its just not right. No other adc can control an entire lane like that. Jhin has to ult to do it, and even then he has to be aware of his positioning and aim his abilities. She is pretty broken right now and is perma banned from me, she isn't fun to play against whatsoever. I've missed enough farm just trying to weave my way in and out of her trap minefield, praying to the autopathing gods that it lets me walk "in between" minions instead of around them. Take away her peacemaker or something, make her give up waveclear for being able to control your position in wave or something. Make it like a skill shot single target snipe, same range as peacemaker but that can't go through minions. She could still hit you with it in traps, still snipe you with it over walls, but it would give SOME room for counterplay rather then dancing through minions praying for autopathing to bless you hoping your support brought 8000 potions to eat the traps for you. She is not in a healthy spot right now at all, and I can't wait til I can actually focus my bans back on backline divers/cc gods rather then wasting it on a Caitlyn that shouldnt be as strong as she is.