Yeah, sure those are needed but they are not the reason you have to jump through hooves and pay ridiculous deposits just to rent an apartment. I know quite a few landlords. None of them would complain about stricter rules and obligations when it comes to maintenance. What they think about every day is non paying or otherwise problematic tenants. This affects the process they use to decide who to rent to and the demographic they are willing to rent to as well.
The effect is that honest people find it difficult to rent an apartment because abusers run rampant and the system protects them. In some European countries you need to prove you have stable job and get recommendation from the previous landlord to even be in the consideration and then you basically have to go for an interview. It's a ridiculous and humiliating process which wouldn't exist if landlords could throw out abusers without much hassle.
The effect is that honest people find it difficult to rent an apartment because abusers run rampant and the system protects them. In some European countries you need to prove you have stable job and get recommendation from the previous landlord to even be in the consideration and then you basically have to go for an interview. It's a ridiculous and humiliating process which wouldn't exist if landlords could throw out abusers without much hassle.