When is it ok not to roam?
As a rule, if you are going to downvote this please comment with your thoughts first and what experience you have (rank and what you main) that allows you to claim what you're going to say.
So I would just like to address something that has been on my mind for a while now with Mid laners. During the laning phase (By this I mean pre Baron spawn or first tower falling) it's inevitable that your mid lane opponent will roam to top or bottom. Now as a support main whenever I notice the mid laner MIA I tell my adc to back up under tower and 9 out of 10 times due to proper warding on my part we spot the roam coming in, when this happens pre level 8 most of the time they will not try to dive you, at which point they will sit in the bush and wait while we laugh. Unless you are expecting a full dive (meaning jungle is bot too or the lane is pushed under tower and both your laners are low HP) the mid laner on your team (typically) should not match the roam. Why you ask? Because in the 60+ seconds the enemy spent walking down to the lane, waiting in the bush, then recalling or walking back to their lane, your mid laner can deny them 2 or 3 waves of farm (which is around 350-400 gold, the same amount a kill is worth) put damage on the tower or even take it. This puts your mid laner ahead in both exp and gold. Now this is only beneficial if the roam fails for the enemy mid lane, if they get a kill then it was all worth it for them. So this is a PSA to all top and bot lane players. If the mid pings MIA and didn't see where the enemy laner was going IT IS 100% YOUR FAULT IF YOU DIE TO THEM. You are responsible for warding your lane and watching for that roam. You are responsible for backing up and playing safer if you don't have vision on the enemy team. And sometimes it makes no sense for the mid lane to even try to match the roam when you have a bot lane comp like bard/sivir, they have so many ways to escape the gank coming in so long as THEY warded like they should. Also sometimes the enemy jungle will be sitting in river bush and when you try to follow the roam you get jumped 2v1, at which point the other lanes will still say you are bad.
I just had an argument with a friend (who was playing sivir) who actually said by not following every roam no matter what that I was sacrificing the other lanes. Now, as someone who has played more than 500 ranked games in bot lane I can't really remember the last time I was dove on by the enemy mid laner unless it was a 4 man dive (or because we really screwed up our positioning) simply because I always kept wards up to spot the roam, played towards the safer side of the lane (bushes on bot are further from tower than playing near river and a Yi, kat or other fast champ can walk through your warded tri bush and still get to you before you can get under tower) and whenever the mid lane or even top lane was MIA for more than 5 seconds I was pinging my adc to fall back until we spotted them.
Losing a few CS is better than getting ganked, losing 2-3 waves, giving the enemy team gold, and losing lane pressure. So to the former friend who called me toxic for trying to explain what I just did here I hope you become a little more understanding with people.
Is what I said always the case? No. Sometimes you should follow your opponent, but you gotta know where they went dont you?
The funny thing is, after reviewing the match that sparked this in more detail it was a failed roam from my bot lane (sivir/bard) to mid that started snowballing my lane opponent at 10 minutes in, allowing her to get ahead of me and freeing her up to roam other lanes. When you are already behind in lane your priority shouldn't be on following your already fed lane opponent around trying to scrape a kill here or there, you usually end up dying (which I did after he kept telling me to follow the fed syndra) which puts you more and more behind, then the team fights start and you are just finishing your second item while the other guy is halfway done with his 4th and you can do nothing to really help anymore. Guys this isn't team death match. 2 minion waves is worth almost as much as a kill and there is no reason to have your mid laner who is behind by several kills and 30 something cs go running around the map trying to fight everyone. You all as a team should play safer, 4 man push lanes, keep vision so your teammate who is behind can safely farm and get back into the fight and stop picking fights with the enemy when they are ahead of you. Force them to fight under your towers, kill 1 or 2 and then use the momentum you have to push back and take a tower for yourselves. Thats how you stop throwing games, thats how you go from 0/5 to 17/8. You work more as a team, WARD WARD WARD, and don't blame anyone for you getting dove under a tower when you knew 15 seconds ago the mid or top lane might be roaming down that way.
This is really coming from a support main on why the mid lane doesn't always need to match the enemy roam. I'd rather my mid laner stay mid, get farm, get more ahead in levels and push tower while we make the enemy mid waste their time in bot lane because I know how to position correctly to avoid ganks and dives.