Gallī sē omnēs ab Dīte patre prōgnātōs praedicant, idque ab Druidibus prōditum dīcunt. Ob eam causam spatia omnis temporis nōn numerō diērum sed noctium fīniunt; diēs nātālēs et mēnsum et annōrum initia sīc observant ut noctem diēs subsequātur. In reliquīs vītae īnstitūtīs hōc ferē ab reliquīs differunt quod suōs līberōs, nisi cum adolēvērunt ut mūnus mīlitiae sustinēre possint, palam ad sē adīre nōn patiuntur fīliumque puerīlī aetāte in pūblicō in cōnspectū patris adsistere turpe dūcunt.
notes
hōc ... quod: 'in this respect .... that' (< A&G 418).
suōs līberōs ... nōn patiuntur: nōn patiuntur suōs līberōs palam ad sē adīre, nisi cum adolēvērunt ut mūnus mīlitiae sustinēre possint.
suos liberos: &c.: The Romans, on the other hand, accustomed their sons to public life, and in early times even took them with them into the Senate. (Allen & Judson) Compare Roman child rearing practices
turpe ducunt: 'they consider it disgraceful,' turpe being pred. adj. agreeing with the infin. clause (Allen & Greenough).
palam…adire: ‘to approach them in public.’ (Walker)
in pūblicō adsistere: 'to take a place in public', presumably at some public event.