No, some companies are opt-out instead of opt-in, meaning that you will contribute to a 401k by default, but you always have the option to change your contribution to zero. And yes, employers commonly match 401k contributions.
Even if they don’t, the tax benefits of using a 401k makes them outweigh any private retirement investments you would make, with the exception of a traditional IRA.
No, some companies are opt-out instead of opt-in, meaning that you will contribute to a 401k by default, but you always have the option to change your contribution to zero. And yes, employers commonly match 401k contributions.
Even if they don’t, the tax benefits of using a 401k makes them outweigh any private retirement investments you would make, with the exception of a traditional IRA.