Roth IRAs are not subject to RMDs, which means you aren’t forced to make withdrawals. In most retirement accounts, Required Minimum Distributions will be mandatory once the account holder turns 70 ½ years old. This does not apply to Roth IRAs.
They are basically the only tax-advantaged retirement account that does not have to take RMDs. This is partially because the IRS wants to make sure they get some of the taxes out of the money that was invested on a pretax basis.
With Roths, the money has already been taxed. But even Roth 401(k)s are subject to RMDs. If you inherit a Roth IRA, though, you will be expected to take RMDs.