I paid for 2 years of Proton family to Jumpstart getting my family away from Google, with a domain for the family. Having said that, there is nothing 'reasonable' about their prices. Additionally, not too long ago they started nickle and diming, which is just a different type of enshittification (agreed that nothing as bad a Google, Microsoft or apple, but still).
Now that my family is 'mostly' off of Google, I'm already showing them how to sync all their stuff to my server while I handle the 3-2-1 backup. It's a tortuous road, but we'll worth it. By the time the 2 years are up, all I'll have to do is move to Mullvad for VPN, Tuta (or something else, haven't decided yet) for email, and we all use Bitwarden in my Vaultwarden server for Password Manager already
Proton is very good so far, still trustworthy for privacy, but their colors are slowly starting to show, so I'm sure they'll eventually bend to the live for money over the reasons they claim we're why they started Proton in the first place.
It's worse than that:
That's right. I got a good deal for the 2 years, but at renewal it will double the cost, assuming they keep the current prices. But that gives me enough time to set up a good infrastructure for everything I can self-hosted, and find better alternatives for the rest, with the added value of not having all eggs in the same basket.