Yes, you could use Google Translate or similar free online services – and that is ok.
Well, maybe not always…
While AI has come a long way in recent years, it just cannot replace a human every time. Some automated translations are indeed very good, but others not so much. In fact, some may be awkward, confusing, inappropriate, or simply incorrect.
After spending a lot of effort, time and possibly money in creating your website, are you really prepared to risk your reputation by displaying a mediocre translation?
The choice is yours.