You will be fine.
However, provided DIs just connect your bass to the PA system, without any tone shaping by a preamp. If you are gonna gig more often I'd personally buy a Sansamp PDDI. That way you can still go to a gig with just your gigbag.
If you wish to have sub-100 hz tones on stage you can plug in your practice amp in the Sansamp's bypass. That way you'll always have a good tone to the board and a familiar sound on stage.
Doesn't break the bank nor your back
Personally I'd bring your practice amp. My first stage monitor-only experience was totally different than I was used to: first gig outdoors I forgot to turn up louder than I do indoors. The amp was miked so I was stuck with an amp I couldn't hear and the monitors gave a very clanky sound.
Overall it was less comfortable/familiar but no drama whatsoever. But to me it's clear I want to have my own amp on stage, and the board gets a decent feed so the rest is up to them.