"In your opinion, is it better to multi-table with 4–6 tables or focus on 1–2 tables for maximum learning and profit
20 is a reasonable starting point, but it depends on a bunch of assumptions, likeIn your opinion, is 20 buy-ins enough for cash games, or should I wait until I have 50 buy-ins to feel safer
Its not nessesary to have 50 BIs for the lowest limit (usually 2NL), before you even start playing, since its very insignificant money, and you can just deposit more later if needed. It is reasonably though to have at least 50 BIs for your current limit before even thinking about moving up to the next limit. So at least $100 before even considering playing 5NL rather than 2NL and at least $250 before even considering playing 10NL rather than 5NL.In your opinion, is 20 buy-ins enough for cash games, or should I wait until I have 50 buy-ins to feel safer
This table is usefull in the sense, that it illustrate the importance of one of the variables, which is your (assumed) winrate. However standard variation also matter and will depend on, which game you play. Its higher for 6-max than full ring, and its higher for PLO than NLH. Standard deviation also depends on your play style and player pool tendencies.Unfortunately there really is no such thing as a bankroll independent of your winrate. Jonathan Little has this table:
View attachment 392704
This is in BB rather than buy-ins, but online you'll buy in for 100 (unless you're playing on GGPoker, in which case it's 200), so you can divide by 100. Here, 20 buy-ins would be what you need if you'r ebeating the game for 25BB/100 hands. You're probably not beating the game for anywhere near as much though.
You could go lower than this because if it's just a hobby, it's fine to take a small risk. But still, if your real winrate is 3BB/100hands, then even if you half it, you're still at 50 buy-ins.
Also if you're a losing player, you're guaranteed to go broke regardless of your bankroll. Gotta mention this because some people on this site give me the impression that they think proper bankroll management can somehow work regardless of your level of play. This is not the case. You have to beat the game before bankroll even becomes a useful concept.
If you're playing online, you can figure out your winrate with e.g. PokerTracker.
Yeah, I think that's the main point. If it's not a lot of money for you, then bankroll management as a whole just isn't a very useful concept because going broke isn't a big deal. Bankroll management only really makes sense to worry about if going broke is important to avoid. I agree that refusing to move up stakes out of principle isn't a good idea.And finally bankroll requirement depends on, what you define as an acceptable risk of ruin.
Bankroll management can make sense even at micro stakes but mainly as a tool to decide, which stakes to play, usually 2NL, 5NL or 10NL. Talking about, how much money you need to have to play 2NL, makes little sense, because regardless how poor you are, you will have SOME living expenses. Even if the money came from freerolls, its not like, freerolls seize to excist the moment, you sit down at a 2NL cash table. So "going broke" does not matter. It just mean, you are back, where you started, or you need to make another small deposit.However, OP didn't specify how much money they have, so I'm reluctant to make assumptions. It doesn't matter how high the stakes are in absolute terms, only how much money it is for you. If it's serious for them, then bankroll management can make sense even at micro stakes.